7th Standard CBSE Science Study material & Free Online Practice Tests - View Model Question Papers with Solutions for Class 7 Session 2019 - 2020
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Science Question Papers

CBSE 7th Standard Science - Wastewater Story Five Marks Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    What are the different types of inorganic and organic impurities generally present in sewage?

  • 2)

    Discuss vermi-processin toilets. Name the useful product obtained from such toilets.

  • 3)

    One day Sachin had gone to his uncle who lives in a village. He saw there a large number of people defecate in an open area because proper toilet facilities are not there. He wondered about the groundwater contamination, as he studied in his class that this act may cause water-borne diseases. He convinced village people to make toilets to avoid such an out break of water-borne diseases.
    (a) Name two water-borne diseases.
    (b) Explain vermi-composting toilets.
    (c) What values are shown by Sachin?

  • 4)

    Think and suggest some ways to minimise waste and pollutants at their source, taking your home as an example.

  • 5)

    Describe the various steps involved in waste water treatment.

7th Standard CBSE Science - Forests: Our Lifeline Five Marks Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    People say that nothing goes waste in a forest. Can you explain how?

  • 2)

    "Forest is a dynamic entity, full of life and vitality". Explain briefly.

  • 3)

    Write the major steps by which we can conserve the forest.

  • 4)

    Figure shows a part of a forest.

    Write any three activities going on in the forest on the basis of this figure

  • 5)

    Cycling of papers help in the conservation of the forests. Justify.

7th Standard CBSE Science - Water: A Precious Resource Five Marks Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Sachin lives in an area where on and off water scarcity is there. He gave a thought to the problem and planned to get a solution. He decided to harvest rainwater in his village. He made efforts to convince the people of his area, built some drainage system and water tanks where rainwater could be collected.
    (a) Name few structures he might have built.
    (b) Name the process of water cycle, Sachin will use for harvesting water.
    (c) Write the methods, Sachin will tell the people to use water wisely

  • 2)

    Two figures 'a' and 'b' are given below. Both are revealing two different human activities which are the cause of depletion of water table. Identify the two acts and explain how are these causing the depletion of water resource.

  • 3)

    Shishir returned from school and found his mother busy in the kitchen. He noticed that she is making his favourite dosa. Shishir rushed to his mother as he was feeling hungry and found that the tap in the kitchen was leaking. He told his mother to replace it as leaking taps lead to the wastage of water. His mother smiled and ensured him to do the same
    (a) What is water management?
    (b) Why should we save water?
    (c) What values are shown by Shishir?

  • 4)

    Water is very precious for all the living beings. What will happen in future, if we do not save water now?

  • 5)

    All the rain that falls over an area is not utilised. Do you agree? Explain.

7th Standard CBSE Science - Light Five Marks Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    It was observed that when the distance between an object and a lens decreases, the size of the image increases. What is the nature of this lens? If you keep on decreasing the distance between the object and the lens, will you still able to obtain the image on the screen? Explain

  • 2)

    You are given three mirrors of different types. How will you identify each one of them?

  • 3)

    Namit was driving a car and suddenly became aware of a loud sound coming from behind. He looked through his rear view mirror and saw an ambulance. He recalled reading that such emergency vehicles often have their name written in the mirror (AMBULANCE) or writing,
    i.e. 3 J VI A J U 8 M A.
    He quickly made way for the ambulance, murmuring a quick prayer for the speedy recovery of the patient inside the ambulance.
    (a) Name the type of mirror which is used as a rear view mirror and why?
    (b) Mention values did Namit exhibit.

  • 4)

    One day, Ramesh's friend was performing their respective experiments given by their teacher. While sitting in the practical lab instead of performing experiment, Ramesh was playing with his meter scale. All the sudden, he held the scale in his hand and started moving in front of tubelight, then he observed the seven colours of white light. After sometimes, he got scolded by his lab teacher for not performing the experiment.
    (a) Give the name of phenomenon that leads to the formation of band of seven colours.
    (b) Name the constituent colours of white light.
    (c) Mention the values shown by Ramesh here.

  • 5)

    Last Sunday Girish's mother, Priyanka was preparing the dinner in her kitchen for Girish and his father. Both of them were feeling so much hungry and they sat ideally on their respective chairs and having empty plates and spoons on their dinning table. They were shouting like a 5 years old child that they wanted the dinner so much eagerly in order to fulfil their stomach. At the sometime, Girish's mother served the cooked food to both of them and the moment, when Girish was just about to eat the rice with the help of spoon, he noticed that the spoon has such a shining surface that it reflected the light rays incident on it.
    (a) Explain the importance of shining surface in the reflection of light.
    (b) Name the type of spherical mirror represented by the shining steel spoon.
    (c) Mention the values shown by Priyanka here towards her family.

CBSE 7th Standard Science - Electric Current and Effects Five Marks Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    What are CFLs ? Why are CFLs preferred over electric bulbs ?

  • 2)

    (a) Why does a glowing electric bulb become warm?
    (b) Mention any two effects of electric current.
    (c) Why does a glowing CFL not become warm?

  • 3)

    (i) What is the heating effect of electric current?
    (ii) Name two appliances that make use of heating effect of electric current.
    (iii) Name the safety device based on the heating effect of electric current.

  • 4)

    One day, Pinki was ironing the clothes in her room. After half an iron of ironing, the light went off and Pinki went outside to the lobby of her house to check it there was any problem in the household circuit. At the same time, she listened the voice of her 4 years old daughter from the same room where she was ironing the clothes. Her daughter was about to touch the hot electric iron but at the same moment, Pinki entered in the room and pushed her daughter back from that place.
    (a) On which effect of electric current, does the electric iron works?
    (b) Mention the values showed by Pinki here.

  • 5)

    State one measure to avoid overloading in an electrical circuit. Also mention the name given to a situation in which the live and the neutral wires accidently come in contact. Describe the role of a safety device in this situation.

7th Standard CBSE Science - Motion and Time Five Mark Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Given below as a figure is the distance-time graph of the motion of an
    (a) What will be the position of the object at 20 s?
    (b) What will be the distance travelled by the object in 12 s?
    (c) What is the average speed ofthe object?

  • 2)

    Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given as figure.
    (a) What does the graph between points B and C indicate about the motion of Boojho?
    (b) Is the motion between 0 to 4 min uniform or non-uniform?
    (c) What is his speed between 8 to 12 min of his journey.

  • 3)

    Explain by giving example that how can we choose a suitable scale.

  • 4)

    Distance between Bholu's and Golu's house is 9 km. Bholu has to attend Golu's birthday party at 7 0' clock. He started his journey from his home at 6 0' clock on his bicycle and covered a distance of 6 km in 40 min. At that point, he met Chintu and he spoke to him for 5 min and reached Golu's birthday party at 7 0' clock. With what speed, did he cover the second part of the journey? Calculate his average speed for the entire journey.

  • 5)

    The given data regarding the motion of two different objects C and 0 is in a tabular form. Check them carefully and state whether the motion of the objects is uniform or non-uniform.

    Time Distance travelled bye (in m) Distance travelled by D (in m)
    9:30 AM 10 12
    9:45 AM 20 19
    10:00 AM 30 23
    10:15 AM 40 35
    10:30 AM 50 37
    10:45 AM 60 41
    11:00 AM 70 44

CBSE 7th Standard Science - Reproduction in Plants Five Marks Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    In the figure of a flower given below, label the parts whose functions are given below and give their names.
    (a) The part which contains pollen grains.
    (b) The part where the female gamete is formed.
    (c) The female reproductive part, where pollen grains germinate.
    (d) The colourful part of flower which attracts insects.

  • 2)

    Observe the following figure and answer the following questions.
    (a) Which type of vegetative propagation has been shown in this figure?
    (b) Name two plants where this method of vegetative reproduction takes place.
    (c) Is this a sexual or asexual mode of reproduction?
    (d) Label the part (A) and (B) in the given figure.

  • 3)

    Explain the process of reproduction in plants, involving the fusion of cells from male and female parts of a flower.

  • 4)

    Name some fruit bearing plants. Now make a table and describe the method of seed dispersal in these fruits as well as the part which helps in the seed dispersal.

  • 5)

    Observe the given figure and answer the following questions.
    (a) Name the plant?
    (b) Which type of reproduction is seen in this plant?
    (c) Is ginger a root or stem?
    (d) Label the part of this plant?

7th Standard CBSE Science - Transpiration in Animals and Plants Five Marks Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Priya's grandfather was taken to the hospital as he was unable to perform excretory processes. Priya heard a nurse talking to her father that her grandfathers has kidney failure and needs to undergo dialysis. Priya later asked her father as to what is dialysis process and why does grandpa needs it. Her father smiles and tells her all the facts associated with this process.
    (a) What do you mean by dialysis?
    (b) Why is there a need for dialysis in some people?
    (c) Excretion is an important life process. How?
    (d) Which is the major excretory organ in humans?
    (e) What values do you observe in Priya?

  • 2)

    While learning to ride a bicycle, Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after sometime.
    (a) Why did the bleeding stop?
    (b) What would be the colour of the wounded area and why?
    (c) Which type of blood cells are responsible for clotting of blood?

  • 3)

    Read the following terms given below.

     root hairs     xylem     urethra  
     arteries   kidneys     veins
     atria   capillaries     heart
     ureter   phloem   urinary bladder  

    Group the terms on the basis of the categories given below.
    (a) Circulatory system of animals.
    (b) Excretory system in human.
    (c) Transport of substances in plants.

  • 4)

    Record your own pulse rate and heartbeat and that of your friends while resting and after running and record in Table.

  • 5)

    Describe in brief the process of formation of urine and its elimination.

CBSE 7th Mathematics - Soil Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Design an activity to show the soil erosion on a barren land.

  • 2)

    The contamination of soil with waste materials causes soil pollution. Does the use of pesticides in agriculture also contribute to the soil pollution? Explain.

  • 3)

    A soil sample was taken from an agricultural land and was weighed. The mass of the soil was found to be 50 g. 100 mL of water was taken in a measuring cylinder and added into the soil sample. The soil absorbed 80 mL of water and rest left in the measuring cylinder. Calculate the absorption rate of water by the soil.

  • 4)

    (a) Soil has various important component. Write them.
    (b) Arrange the following rock particles which occur in soil in the increasing order. Silt, clay, gravel, sand.
    (c) Observe the following figure. What does this figure show?

  • 5)

    In towns and cities, generally, the borewells have to be dug very deep to get water as compared to borewells dug in villages. Give suitable reasons.

CBSE 7th Mathematics - Transpiration in Animals and Plants Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Priya's grandfather was taken to the hospital as he was unable to perform excretory processes. Priya heard a nurse talking to her father that her grandfathers has kidney failure and needs to undergo dialysis. Priya later asked her father as to what is dialysis process and why does grandpa needs it. Her father smiles and tells her all the facts associated with this process.
    (a) What do you mean by dialysis?
    (b) Why is there a need for dialysis in some people?
    (c) Excretion is an important life process. How?
    (d) Which is the major excretory organ in humans?
    (e) What values do you observe in Priya?

  • 2)

    While learning to ride a bicycle, Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after sometime.
    (a) Why did the bleeding stop?
    (b) What would be the colour of the wounded area and why?
    (c) Which type of blood cells are responsible for clotting of blood?

  • 3)

    While riding a bike, Mason fell from it due to loss of balance. He got up and realised that he was bleeding from several wounds badly. He panicked and started to run but Mansi who was looking at him, stopped him and told him to clean his wound with a clean cloth and that blood will stop coming in a while. Mason noticed that he has stopped bleeding after sometime and a hard covering was appearing on his wounds.
    (a) Why did the bleeding stop after a while?
    (b) What is blood and what type of cells are responsible for clotting?
    (c) What of values do you think Mansi have?

  • 4)

    Read the following terms given below.

     root hairs     xylem     urethra  
     arteries   kidneys     veins
     atria   capillaries     heart
     ureter   phloem   urinary bladder  

    Group the terms on the basis of the categories given below.
    (a) Circulatory system of animals.
    (b) Excretory system in human.
    (c) Transport of substances in plants.

  • 5)

    Record your own pulse rate and heartbeat and that of your friends while resting and after running and record in Table.

CBSE 7th Mathematics - Light Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    It was observed that when the distance between an object and a lens decreases, the size of the image increases. What is the nature of this lens? If you keep on decreasing the distance between the object and the lens, will you still able to obtain the image on the screen? Explain

  • 2)

    You are given three mirrors of different types. How will you identify each one of them?

  • 3)

    Namit was driving a car and suddenly became aware of a loud sound coming from behind. He looked through his rear view mirror and saw an ambulance. He recalled reading that such emergency vehicles often have their name written in the mirror (AMBULANCE) or writing,
    i.e. 3 J VI A J U 8 M A.
    He quickly made way for the ambulance, murmuring a quick prayer for the speedy recovery of the patient inside the ambulance.
    (a) Name the type of mirror which is used as a rear view mirror and why?
    (b) Mention values did Namit exhibit.

  • 4)

    One day, Ramesh's friend was performing their respective experiments given by their teacher. While sitting in the practical lab instead of performing experiment, Ramesh was playing with his meter scale. All the sudden, he held the scale in his hand and started moving in front of tubelight, then he observed the seven colours of white light. After sometimes, he got scolded by his lab teacher for not performing the experiment.
    (a) Give the name of phenomenon that leads to the formation of band of seven colours.
    (b) Name the constituent colours of white light.
    (c) Mention the values shown by Ramesh here.

  • 5)

    Last Sunday Girish's mother, Priyanka was preparing the dinner in her kitchen for Girish and his father. Both of them were feeling so much hungry and they sat ideally on their respective chairs and having empty plates and spoons on their dinning table. They were shouting like a 5 years old child that they wanted the dinner so much eagerly in order to fulfil their stomach. At the sometime, Girish's mother served the cooked food to both of them and the moment, when Girish was just about to eat the rice with the help of spoon, he noticed that the spoon has such a shining surface that it reflected the light rays incident on it.
    (a) Explain the importance of shining surface in the reflection of light.
    (b) Name the type of spherical mirror represented by the shining steel spoon.
    (c) Mention the values shown by Priyanka here towards her family.

CBSE 7th Mathematics - Forests: Our Lifeline Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    People say that nothing goes waste in a forest. Can you explain how?

  • 2)

    "Forest is a dynamic entity, full of life and vitality". Explain briefly.

  • 3)

    Write the major steps by which we can conserve the forest.

  • 4)

    Figure shows a part of a forest.

    Write any three activities going on in the forest on the basis of this figure

  • 5)

    Sachin lives in a village, this village is surrounded by a forest. One day he noticed that in nearby pond sedimentation is increased so much that water has become muddy, streams are drying up. There is scarcity of fuel wood. He soon realised that he has to raise the issue of forest protection from cutting down trees, etc. Soon he involved the nearby village people and made an organisation to take an initiative.
    Now, answer the following questions
    (a) What changes might have Sachin noticed in his area?
    (b) Give the porbable reason for such changes mentioned above.
    (c) What are the values shown by Sachin?

CBSE 7th Mathematics - Water: A Precious Resource Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Sachin lives in an area where on and off water scarcity is there. He gave a thought to the problem and planned to get a solution. He decided to harvest rainwater in his village. He made efforts to convince the people of his area, built some drainage system and water tanks where rainwater could be collected.
    (a) Name few structures he might have built.
    (b) Name the process of water cycle, Sachin will use for harvesting water.
    (c) Write the methods, Sachin will tell the people to use water wisely

  • 2)

    Two figures 'a' and 'b' are given below. Both are revealing two different human activities which are the cause of depletion of water table. Identify the two acts and explain how are these causing the depletion of water resource.

  • 3)

    Shishir returned from school and found his mother busy in the kitchen. He noticed that she is making his favourite dosa. Shishir rushed to his mother as he was feeling hungry and found that the tap in the kitchen was leaking. He told his mother to replace it as leaking taps lead to the wastage of water. His mother smiled and ensured him to do the same
    (a) What is water management?
    (b) Why should we save water?
    (c) What values are shown by Shishir?

  • 4)

    Water is very precious for all the living beings. What will happen in future, if we do not save water now?

  • 5)

    All the rain that falls over an area is not utilised. Do you agree? Explain.

CBSE 7th Mathematics - Motion and Time Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Given below as a figure is the distance-time graph of the motion of an
    (a) What will be the position of the object at 20 s?
    (b) What will be the distance travelled by the object in 12 s?
    (c) What is the average speed ofthe object?

  • 2)

    Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given as figure.
    (a) What does the graph between points B and C indicate about the motion of Boojho?
    (b) Is the motion between 0 to 4 min uniform or non-uniform?
    (c) What is his speed between 8 to 12 min of his journey.

  • 3)

    Explain by giving example that how can we choose a suitable scale.

  • 4)

    Distance between Bholu's and Golu's house is 9 km. Bholu has to attend Golu's birthday party at 7 0' clock. He started his journey from his home at 6 0' clock on his bicycle and covered a distance of 6 km in 40 min. At that point, he met Chintu and he spoke to him for 5 min and reached Golu's birthday party at 7 0' clock. With what speed, did he cover the second part of the journey? Calculate his average speed for the entire journey.

  • 5)

    The given data regarding the motion of two different objects C and 0 is in a tabular form. Check them carefully and state whether the motion of the objects is uniform or non-uniform.

    Time Distance travelled bye (in m) Distance travelled by D (in m)
    9:30 AM 10 12
    9:45 AM 20 19
    10:00 AM 30 23
    10:15 AM 40 35
    10:30 AM 50 37
    10:45 AM 60 41
    11:00 AM 70 44

CBSE 7th Mathematics - Reproduction in Plants Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    In the figure of a flower given below, label the parts whose functions are given below and give their names.
    (a) The part which contains pollen grains.
    (b) The part where the female gamete is formed.
    (c) The female reproductive part, where pollen grains germinate.
    (d) The colourful part of flower which attracts insects.

  • 2)

    Observe the following figure and answer the following questions.
    (a) Which type of vegetative propagation has been shown in this figure?
    (b) Name two plants where this method of vegetative reproduction takes place.
    (c) Is this a sexual or asexual mode of reproduction?
    (d) Label the part (A) and (B) in the given figure.

  • 3)

    Explain the process of reproduction in plants, involving the fusion of cells from male and female parts of a flower.

  • 4)

    Name some fruit bearing plants. Now make a table and describe the method of seed dispersal in these fruits as well as the part which helps in the seed dispersal.

  • 5)

    Observe the given figure and answer the following questions.
    (a) Name the plant?
    (b) Which type of reproduction is seen in this plant?
    (c) Is ginger a root or stem?
    (d) Label the part of this plant?

CBSE 7th Mathematics - Respiration in Organisms Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    (a) Plants lack a specialised respiratory system. How do they carry out respiratory process? Explain.
    (b) The plant roots being underground respire by using which mechanism?

  • 2)

    Paheli participated in a 400 m race competition held at her school and won the race. When she came home she had mixed feelings of joy and pain as she had cramps in her leg muscles. After a massage, she was relieved of the pain. Answer the following questions related to the situation.
    (a) What can be the possible reasons for the pain in her legs?
    (b) Why did she fell comfortable after a massage?

  • 3)

    It is not wise to sleep under a tree during night. Why?

  • 4)

    Observe the figures carefully and answer the following questions.

    (a) Which process is being tested in the activity?
    (b) What is the result of the activity? Give reasons.

  • 5)

    (a) Respiratory process occurs in two phases, what are those two major steps of respiration? Describe each one.
    (b) Define the term breathing rate.

CBSE 7th Mathematics - Weather, Climate and Adaptations of Animals to Climate Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Rohan went to the desert of Rajasthan with his freinds. He saw an animal. It had a hump. Its feet had large soles. He wondered about this animal. He found that these were adaptations of that animal which helped it to survive in very hot and dry climate of the desert. Answer the following questions on the basis of the observations seen by Rohan.
    (a) Name the animal Rohan observed in the desert of Rajasthan?
    (b) What role does this hump has in this animal?
    (c) Why do it has large soles?
    (d) Can you give same more adaptations of this animal which help it to survive in desert?
    (e) What values do you observe in Rohan?

  • 2)

    In a class, the teacher was explaining a concept from weather and climate chapter. Anand got confused and slowly asked his teacher to repeat again. She smiled and started again. In equatorial belt the climate is hot and wet. It has evergreen rainforest and variety of plants. Similarly the vegetation of tropical region also has variations. The forest located between two tropics is called tropical forest. Desert shows arid region and only xerophytes are observed. These plants show specific modification for their survival in this arid region.
    (a) Which type of forest is formed in equatorial region?
    (b) What are the variation in vegetation seen in tropical forest?
    (c) Give some adaptations of plants that are formed in desert.
    (d) Some places conifers are seen. What are these places?
    (e) What values do we observe in the teacher and Anand?

  • 3)

    The following graph shows the change in temperature. Answer according to the reading of graph.
    (a) Draw a table and fill the temperature change of each day.
    (b) Which day show the highest temperature?
    (c) Which day shows the minimum temperature?

  • 4)

    How elephant is adopted to the conditions of tropical rainforest?

  • 5)

    What is meant by migration of birds, how it is regulated?

CBSE 7th Mathematics Heat Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Explain the differences between heat and temperature.

  • 2)

    Explain the reason for the following statement, "When heat is applied at the bottom of the water vessel, then it gets heated more quickly than when it is heated at the top."

  • 3)

    Prove with the help of an experiment that heat radiation can travel through vacuum.

  • 4)

    On last Monday, Pankaj was dealing immense cough and cold. Besides this, he was suffering from a great headache. So, he decided to take a leave on that day so that he could take some rest at his home. After one hour he thought to check his fever through a clinical thermometer, so before using it, he washed it and started shaking it very fastly in his hand, so that the mercury level of thermometer gets reduced. At the same time, his elder brother Vishwas scold him and suggested him to shake thet hermometer slowly.
    (a) State some precautionary measures while checking the fever through a clinical thermometer.
    (b) Mention the values showed by the elder brother of Pankaj ( i.e. Vishwas).

  • 5)

    Last Sunday, Pooja on her week off entered in her kitchen to cook rice for her family in lunch time. The moment she put fry pan on the gas stove and lighted it through the matchstick, all of sudden her 5 years small daughter entered into the kitchen and tends to touch the hot fry pan. At the same time, Pooja saw her and pushed her away from the hot fry pan. In this way, she saved her child.
    (a) Explain why do the fry pan are provided with the plastic handles?
    (b) Mention the values represented by Pooja here towards her 5 years small daughter.

CBSE 7th Mathematics Fibre to Fabric Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Paheli went to the market to buy sarees for her mother. She took out a thread from the edge of the two sarees shown by the shopkeeper and burnt them. One thread burnt with a smell of burning hair and the other burnt with the smell of burning paper. Which thread is from a pure cotton saree and which one from a pure silk saree? Give reason for your answer.

  • 2)

    Neha went to the market with her mother to buy a silk saree for her grandmother. The shopkeeper was showing sarees of different varieties of silk but her mother wanted to take only a pure silk saree and not an artificial one. Neha was confused that how to distinguish between a pure silk and an artificial silk saree. But her mother helped her in selecting a pure silk saree for her grandmother and she was quite elated about that.
    Now, answer the following questions:
    (a) How her mother distinguished between pure silk saree and an artificial silk saree?
    (b) Is the pure silk saree more costly than an artificial one?
    (c) What values are shown by Neha's mother?

  • 3)

    Ajay's father works in a wool industry. In his line of work, he does the job of sorting the fleece of sheep into fibres of different qualities. Ajay noticed that his father and other workers who were doing the similar kind of jobs faced a number of health problems. Ajay discussed this problem with his friends and he came to know that his father is getting health problems due to the nature of his work. Ajay is worried about his father's health. He advised his father to take care of their health and told him about the occupational hazards.
    Now answer the following questions.
    (a) What do you mean by occupational hazard?
    (b) Name the disease that workers may at risk.
    (c) What values are shown by Ajay?

  • 4)

    Compare the burning characteristics of cotton, nylon, silk and wool.

  • 5)

    Give a brief account of wool manufacturing.

7th Standard CBSE Science - Nutrition in Animals Five Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Label the given figure as directed below in A to D and give the name of each type of teeth.
    (a) The cutting and biting teeth as A
    (b) The piercing and tearing teeth as B
    (c) The grinding and chewing teeth as C
    (d) The grinding teeth present only in adult as D.

  • 2)

    Label the following parts of above figure and name them.
    (a) The largest gland in our body.
    (b) The organ where protein digestion starts.
    (c) The organ that releases digestive juice into the small intestine.
    (d) The organ where bile juice gets stored.

  • 3)

    Little Rishi (student of class VI) was watching his favourite cartoon serial on television. Suddenly he got hiccups. His elder brother Shubham who was sitting near by him gave him a glass of water and suggested not to eat too fast in a hurry. Little Rishi got confused as he had heard that 'hicki' comes when someone remembers. He asked his father. His father smiled and explained him that it is only a myth. He also explained him the proper scientific reason behind it.
    (a) What is hiccup?
    (b) Why do we get hiccup?
    (c) What are the values shown by Rishi?

  • 4)

    Jaya returned from school and found that grandmother was scolding her maid, Rani as she did not come yesterday. The maid told that his son was passing watery stools frequently that's why she didn't come. Jaya's mother who was listening the discussion came to them and told Rani not to come for coming 3-4 days. She also suggested her to give his son a solution of sugar and salt in clean water, many times a day for fast recovery. Jaya was surprised. She rushed to her mother and asked the scientific reason for it. Her mother smiled and explained her the importance of this solution.
    (a) Name the term used to describe the condition in which a person passes out watery stools.
    (b) Name the solution of sugar and salt in water. Why is it given to a person suffering from diarrhoea?
    (c) What are the values shown by Jaya?

  • 5)

    Read the following passage carefully and answer the questions that follow it.
    Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas.
    (a) Which organ secretes the bile juice?
    (b) Why is digestion of fats difficult as compared to that of other nutrients?
    (c) How does bile juice help in digestion of that of other mutrients?
    (d) Where is the digestion of fat completed?
    (e) Does bile juice digest fat completely?

7th CBSE Science - Respiration in Organisms Five Mark Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    A food stall owner was preparing dough for making bhaturas. He added a pinch of yeast and sugar to the dough and left it in a warm place. After few hours, the dough had risen. There was a sour smell too.
    (a) Why did the dough rise?
    (b) Why did the dough smell sour?
    (c) Why was sugar added to the dough?
    (d) What would have happened if the dough was kept in the refrigerator, soon after it was prepared?

  • 2)

    Paheli participated in a 400 m race competition held at her school and won the race. When she came home she had mixed feelings of joy and pain as she had cramps in her leg muscles. After a massage, she was relieved of the pain. Answer the following questions related to the situation.
    (a) What can be the possible reasons for the pain in her legs?
    (b) Why did she fell comfortable after a massage?

  • 3)

    It is not wise to sleep under a tree during night. Why?

  • 4)

    (a) Respiratory process occurs in two phases, what are those two major steps of respiration? Describe each one.
    (b) Define the term breathing rate.

  • 5)

    List some animals around you. Now group them as follows:
    (a) Animals that can breathe only through skin.
    (b) The animal that can breathe through skin as well as through lungs.
    (c) The animal that can breathe through lungs.
    (d) Animals that can breathe through gills.
    (e) Animals that can breathe through spiracle and tracheae?

CBSE 7th Standard Science - Soil Five Mark Model Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Design an activity to show the soil erosion on a barren land.

  • 2)

    The contamination of soil with waste materials causes soil pollution. Does the use of pesticides in agriculture also contribute to the soil pollution? Explain.

  • 3)

    In towns and cities, generally, the borewells have to be dug very deep to get water as compared to borewells dug in villages. Give suitable reasons.

  • 4)

    Soil erosion does not occur easily where the land is covered by vegetation. Do you agree? Explain.

  • 5)

    The raw and baked soil differs from each other. How they are different? How can you prepare matkas from soil?

CBSE 7th Standard Science - Winds, Storms and Cyclones Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Briefly explain what are cyclones and how are they formed.

  • 2)

    What is thunderstorm? How does it develop?

  • 3)

    What is an anemometer? Explain with the help of a diagram.

  • 4)

    The picture in figure shows tree line along the sea coast on an island near the equator. As shown, the tree tops are permanently bent in one direction. Are the trees bend towards the sea or away from it? Explain.

  • 5)

    The phenomenon of cloud formation, rain, storm and cyclone are inter linked. Do you agree? If yes, give a flow chart that explain this relation.

7th CBSE Science - Weather, Climate and Adaptations of Animals to Climate Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    What characteristics does a polar bear possess for:
    (i) Protecting them from predators?
    (ii) Protecting them from extreme cold?
    (iii) Avoiding getting over heated?

  • 2)

    How is the mean temperature of a given month determined?

  • 3)

    Rohan went to the desert of Rajasthan with his freinds. He saw an animal. It had a hump. Its feet had large soles. He wondered about this animal. He found that these were adaptations of that animal which helped it to survive in very hot and dry climate of the desert. Answer the following questions on the basis of the observations seen by Rohan.
    (a) Name the animal Rohan observed in the desert of Rajasthan?
    (b) What role does this hump has in this animal?
    (c) Why do it has large soles?
    (d) Can you give same more adaptations of this animal which help it to survive in desert?
    (e) What values do you observe in Rohan?

  • 4)

    In a class, the teacher was explaining a concept from weather and climate chapter. Anand got confused and slowly asked his teacher to repeat again. She smiled and started again. In equatorial belt the climate is hot and wet. It has evergreen rainforest and variety of plants. Similarly the vegetation of tropical region also has variations. The forest located between two tropics is called tropical forest. Desert shows arid region and only xerophytes are observed. These plants show specific modification for their survival in this arid region.
    (a) Which type of forest is formed in equatorial region?
    (b) What are the variation in vegetation seen in tropical forest?
    (c) Give some adaptations of plants that are formed in desert.
    (d) Some places conifers are seen. What are these places?
    (e) What values do we observe in the teacher and Anand?

  • 5)

    The following graph shows the change in temperature. Answer according to the reading of graph.
    (a) Draw a table and fill the temperature change of each day.
    (b) Which day show the highest temperature?
    (c) Which day shows the minimum temperature?

7th Standard CBSE Science - Reproduction in Plants Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Explain what do you understand by sexual reproduction?

  • 2)

    State the main differences between asexual and sexual reproduction.

  • 3)

    How does the process of fertilisation take place in flowers?

  • 4)

    Collect some flower of different plants like papaya, rose, mustard, lady's finger, Petunia, cucumber, corn, pea, etc. Group them under following heads.
    (a) Which of these plants have unisexual flowers?
    (b) Which of these plants have bisexual flower?
    (c) What is the other name of unisexual and bisexual flower?

  • 5)

    What is a bud? Which organism reproduces by budding? Given the diagrammatic representation of budding in a plant.

7th Standard CBSE Science - Motion and Time Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following are not correct?
    (a) The basic unit of time is second.
    (b) Every object moves with a constant speed.
    (c) Distances between two cities are measured in kilometres.
    (d) The time period of a given pendulum is not constant.
    (e) The speed of a train is expressed in m/h.

  • 2)

    A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?

  • 3)

    The distance between two stations is 240 km. A train takes 4 h to cover this distance. Calculate the speed of the train.

  • 4)

    Salma takes 15 min from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.

  • 5)

    Suppose, the two photographs, shown in two figures had been taken at an interval of 10 s. If a distance of 100 m is shown by 1 cm in these photographs, then calculate the speed of the circled car.

CBSE 7th Science - Electric Current and Effects Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name any two effects of electric current.

  • 2)

    When the current is switched ON through a wire, a compass needle kept nearby gets deflected from its North-South position. Explain.

  • 3)

    Will the compass needle show deflection, when the switch in the circuit shown by figure is closed?

  • 4)

    Name two electric devices for each where
    (a) heating effect of current is used and
    (b) magnetic effect of current is used.

  • 5)

    Why do we cover plug pinholes which are within the reach of children with cellotape or a plastic cover when not in use?

CBSE 7th Science - Light Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Which type of lens forms always a virtual image?

  • 2)

    Differentiate between a plane mirror, concave mirror and a convex mirror without touching them.

  • 3)

    The concave reflecting surface of a torch got rusted. What effect would this have on the beam of light from the torch?

  • 4)

    Mention the type of image
    (a) which can be formed on the screen.
    (b) which cannot be formed on the screen.

  • 5)

    Boojho made light from a laser torch to fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.

7th Standard CBSE Science - Water: A Precious Resource Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Explain how groundwater is recharged.

  • 2)

    There are 10 tubewells in a lane of 50 houses, what could be the long term impact on the water table?

  • 3)

    You have been asked to maintain a garden. How will you minimise the use of water?

  • 4)

    Explain the factors responsible for the depletion of water table.

  • 5)

    Make a sketch showing groundwater and water table. Label it.

CBSE 7th Science - Wastewater Story Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    The terms sewage, sewers and sewerage are interlinked with each other. Can you explain, how?

  • 2)

    Describe onsite disposal systems.

  • 3)

    Can we contribute in sanitation at public places? Explain.

  • 4)

    Three statements are provided here which define the terms, i.e. sludge, sewage and wastewater.
    Pick out the correct definition for each of these terms.
    (a) The settled solids that are removed in wastewater treatment with a scraper.
    (b) Water from kitchen used for washing dishes.
    (c) Wastewater released from homes, industries, hospitals and other public buildings.

  • 5)

    With reference to the treatment of polluted water at home by aeration, filtration, chlorination processes answer the following questions.
    Do chlorine have an odour?

7th Standard CBSE Science - Forests: Our Lifeline Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Forests are valuable resources. Explain.

  • 2)

    Plants help in maintaining O2-CO2 cycle. Explain it in the light of photosynthesis and respiration.

  • 3)

    Give any four factors which are responsible for the destruction of forests.

  • 4)

    Is it possible to construct a food chain without a producer? State the reason to support your answer.

  • 5)

    State the role of scavengers in cleaning of our environment.

7th Standard CBSE Science - Transpiration in Animals and Plants Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name the tissues of a plant which carries
    (a) water and minerals from roots to the leaves.
    (b) food from the leaves to the other parts of the plant.

  • 2)

    (a) Name the only artery that carries carbon dioxide-rich blood.
    (b) Why is it called an artery if it does not carry oxygen-rich blood?

  • 3)

    What is the relation between the rate of heartbeat and pulse rate? If a pulse rate of an athlete is 96/min, what will be the number of his heartbeat at the same time?

  • 4)

    Give one function of each of the following organs.
    (a) Blood vessels
    (b) Kidney
    (c) Blood platelets
    (d) Heart.

  • 5)

    How is transpiration and translocation different from each other.

7th Standard CBSE - Physical and Chemical Changes Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Give an example of a chemical reaction for each of the following situations:
    (a) A change in colour is observed.
    (b) A gas is evolved.
    (c) Sound is produced.

  • 2)

    Rahul was a student of Class VII. His father purchased a new bicycle for him on his birthday. After few months, he found that the cycle chain and even the handle gets rusted. His father advised him to apply a coating of paint to the cycle and not to keep it in the open in future. Now, answer the following questions:
    (a) Why his cycle gets rusted?
    (b) What do you mean by rusting of iron?
    (c) What values are shown py Rahul's father?

  • 3)

    In the summer holidays, Karan went to Rann of Kutch in Gujarat with his parents. Karan was aware that in the coastal regions of India especially in the Rann of Kutch common salt is obtained from seawater. Karan was very excited to see that place. He requested his father that he wants to see the process of obtaining salt from the sea. His father helped him and they went to see the place where common salt was collecting. And he also explained the whole process. Karan was very happy to see the process. Now, answer the following questions.
    (a) How is common salt obtained from sea water?
    (b) Name the process by which salt is collected from seawater
    (c) What values are shown by Karan?

  • 4)

    If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
    (a) Do you think rust is different from iron?
    (b) Can you change rust back into iron by some simple method?
    (c) Do you think the formation of rust on iron is a chemical change?
    (d) Give two other examples of a similar type of change.

  • 5)

    Which gas is released when vinegar and baking soda are mixed ? What happens when this gas is passed through lime water?

7th CBSE Science - Acids, Bases and Salts Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Distinguish between the following:
    (i) Acid and alkali
    (ii) Base and alkali
    (iii) Organic acid and mineral acid.

  • 2)

    What is the effect of ant-bite? Explain its cure.

  • 3)

    A farmer was unhappy because of his low crop yield. He discussed the problem with an agricultural scientist and realised that the soil of his field was either too acidic or too basic. What remedy would you suggest the farmer to neutralise the soil?

  • 4)

    Boojho, Paheli and their friend Golu were provided with a test, each containing China rose solution which was pink in colour. Boojho added 2 drops of solution 'A' in his test tube and got dark pink colour. Paheli added 2 drops of solution '8'to her test tube and got green colour. Golu added 2 drops of solution 'C' but could not get any change in colour. Suggest the possible cause for the variation in their results.

  • 5)

    Nitesh was playing with his friends in the garden. Suddenly, Nitesh was stung by a honeybee and was in great pain. Immediately, his friends call his mother. She applied baking soda solution on the affected area and then took him to the doctor.
    Read the above passage and answer the following questions:
    (a) What could be the reason for this burning pain?
    (b) Why did his mother applied baking soda solution on the affected area?
    (c) What values are shown by Nitesh's friends?

7th Standard CBSE Science - Respiration in Organisms Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Why do we often sneeze when we inhale a lot of dust-laden air?

  • 2)

    Take three test tubes. Fill 3/4th of each with water. Label them A, B and C. Keep a snail in test tube A, a water-plant in test tube B and in C, keep snail and plant both. Which test tube would have the highest concentration of CO2?

  • 3)

    Pick the odd one out from each of the groups given below on the basis of respiratory organs. Give reason for your answer.
    (a) Cockroach, grasshopper, snail, ant
    (b) Lizard, cow, earthworm, snake
    (c) Crocodile, whale, dolphin, fish
    (d) Snake, tadpole, crow, goat

  • 4)

    After we work hard or perform physical activity, we feel hungry. Explain why

  • 5)

    Observe the given figures carefully and answer the following questions.
    (a) The amount of CO2 be the highest in which jar. Why?
    (b) The amount of CO2 be the lowest in which one and why?

7th Standard CBSE Science - Soil Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Explain how soil is formed.

  • 2)

    How is clayey soil useful for crops?

  • 3)

    List the differences between clayey soil and sandy soil.

  • 4)

    Explain how soil pollution and soil erosion could be prevented.

  • 5)

    Suppose certain sample takes 120 min for 960 mL water to percolate into the soil. Calculate the rate of percolation of water.

CBSE 7th Science - Winds, Storms and Cyclones Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Suggest two methods to find out wind direction at a given place.

  • 2)

    State two experiences that made you think that air exerts pressure.

  • 3)

    Explain why holes are made in hanging banners and hoardings.

  • 4)

    How will you help your neighbours in case cyclone approaches your village/town?

  • 5)

    Mention an example when the cyclone hit a part of India and how much destruction was caused due to it.

7th Standard CBSE Science Unit 7 Weather, Climate and Adaptations of Animals to Climate Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name the elements that determine the weather of a place.

  • 2)

    When are the maximum and minimum temperatures likely to occur during the day?

  • 3)

    Which of the two changes frequently, weather or climate?

  • 4)

    Explain with examples, why we find animals of certain kind living in particular climatic conditions.

  • 5)

    How do elephant living in the tropical rainforest adapt itself?

7th Standard CBSE Science - Physical and Chemical Changes Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Explain why burning of wood and cutting it into small pieces are considered as two different types of changes.

  • 2)

    Describe how crystals of copper sulphate are prepared.

  • 3)

    Anaerobic bacteria digest animal waste and produce biogas (change A). The biogas is then burnt as fuel (change B). The following statements pertain to these changes. Choose the correct one.
    (a) Process A is a chemical change
    (b) Process B is a chemical change
    (c) Both processes A and B are chemical changes
    (d) None of the above processes is a chemical change

  • 4)

    Is cloud formation a physical change or chemical change? Explain.

  • 5)

    Write the differences between physical and chemical changes.

7th CBSE Science - Heat Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    State the limitation of clinical thermometer.

  • 2)

    Briefly explain the maximum and minimum thermometers.

  • 3)

    Explain the reason for wrapping of ice in gunny bags.

  • 4)

    Why is the handle of a metallic kettle covered with strips of cane?

  • 5)

    Explain the differences between heat and temperature.

7th Standard CBSE Science - Fibre to Fabric Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Write a caption for each of the figures given as figure (a-d).

  • 2)

    Steps for the production of silk are given below in a jumbled order. Arrange them in their proper sequence.
    (a) Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.
    (b) Fibres are taken out from the cocoon.
    (c) After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.
    (d) The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.
    (e) Female silk moths lay eggs.
    (f) Cocoons are kept under the sun or boiled in water.

  • 3)

    What is meant by the following terms?
    (i) Rearing, (ii) Shearing, (iii)Sericulture

  • 4)

    Out of the following, which are the two terms related to silk production? Sericulture, floriculture, moriculture, apiculture, silviculture.
    Hints: (i) Silk production implies the cultivation of mulberry leaves and rearing silkworms.
    (ii) 'Morus Alba' is the scientific name of mulberry

  • 5)

    What is raw silk? How is it produced?

7th CBSE Science - Nutrition in Animals Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    As Rishab is fond of eating chocolates, his mother always discusses about the importance of teeth in our life and to take care of it. Rishab is reluctant to follow the instructions given by his mother. One day while bitting guava he saw blood patch on it. He became afraid and asked his mother the following questions:
    (i) Which is the problem coming in my teeth which cause toothache?
    (ii) How can I get rid of it?
    (iii) Which value is promoted by Rishab's mother?

  • 2)

    Label the following parts of above figure and name them.
    (a) The largest gland in our body.
    (b) The organ where protein digestion starts.
    (c) The organ that releases digestive juice into the small intestine.
    (d) The organ where bile juice gets stored.

  • 3)

    Jaya returned from school and found that grandmother was scolding her maid, Rani as she did not come yesterday. The maid told that his son was passing watery stools frequently that's why she didn't come. Jaya's mother who was listening the discussion came to them and told Rani not to come for coming 3-4 days. She also suggested her to give his son a solution of sugar and salt in clean water, many times a day for fast recovery. Jaya was surprised. She rushed to her mother and asked the scientific reason for it. Her mother smiled and explained her the importance of this solution.
    (a) Name the term used to describe the condition in which a person passes out watery stools.
    (b) Name the solution of sugar and salt in water. Why is it given to a person suffering from diarrhoea?
    (c) What are the values shown by Jaya?

  • 4)

    Define oral rehydration solution and when it is given to the patient? How can you prepare ORS at home?

  • 5)

    Explain the human digestive system with the help of labelled diagram.

7th CBSE Science - Nutrition in Plants Five Mark Question Paper - by Sowmini - Moulsari - View & Read

  • 1)

    Nitrogen is an essential nutrient for plants growth. But farmers who cultivate pulses as crops like green gram, bengal gram, black gram, etc., do not apply nitrogenous fertilisers during cultivation. Why?

  • 2)

    Pooja is worried about her new shoes which she wore on special occassions that they were spoiled by fungus during rainy seasion. Is she right to worry, if yes, then tell why does fungi suddenly appears during the rainy season?

  • 3)

    2. (a) Draw a diagram of a pitcher plant to show the following parts:
    (i) Pitcher
    (ii) Lid
    (b) What is the mode of nutrition of this plant?
    (c) Is it an autotroph or partial heterotroph?

  • 4)

    Vivek went to visit his grandfather in village where he saw that his grandfather's field of wheat is infected with fungus but no one is aware of this. Vivek told him that he should use an antifungal agent in his fields to stop this infection?
    (a) What is fungus?
    (b) Can fungus only cause disease or can it be helpful also?
    (c) What values are shown by Vivek?

  • 5)

    Describe the process by which plants prepare their food using different raw materials.

7th Standard CBSE Science - Acids, Bases and Salts Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    What is the test for acids and bases using litmus paper?

  • 2)

    Write the name of two indicators which occur naturally.

  • 3)

    Name the acid present in lemon juice and tomato.

  • 4)

    Name a substance which is used to cure the discomfort caused by indigestion due to over eating.

  • 5)

    Name the salt formed when hydrochloric acid reacts with sodium hydroxide solution (a base).

7th Standard CBSE Science - Heat Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    State similarities and differences between the laboratory thermometer and the clinical thermometer.

  • 2)

    Give two examples each of conductors and insulators of heat.

  • 3)

    The handle of a pressure cooker is covered with the thick plastic. Explain why.

  • 4)

    Differentiate between two modes of transfer of heat, i.e. convection and conduction.

  • 5)

    The freezer is located at the top of the refrigerator. Explain why.

7th Standard CBSE Science - Fibre to Fabric Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Sheep are herbivores, so which type of feed (or food) is provided by shepherds?

  • 2)

    Write a caption for each of the figures given as figure (a-d).

  • 3)

    Sorter's disease is an occupational hazard. Explain.

  • 4)

    Various steps involved to obtain wool from fleece are given here.
    (i) Picking out the burrs
    (ii) Dyeing in various colours
    (iii) Shearing
    (iv) Scouring
    (v) Sorting
    Write the above steps in the correct sequence in which they are carried out.

  • 5)

    Cocoon is used to obtain silk thread. How?

7th Standard CBSE Science - Nutrition in Animals Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Can we survive only on raw, leafy vegetables/grass? Discuss.

  • 2)

    Name the various components of food and their simpler forms.

  • 3)

    Boojho and Paheli were eating their food hurriedly so that they could go out and play during the recess. Suddenly, Boojho started coughing violently. Think of the reasons, why he was coughing and discuss with your friends?

  • 4)

    Gastric glands in stomach release hydrochloric acid, enzyme pepsin and mucus. What will happen if mucus is not secreted by the gastric glands?

  • 5)

    The swallowed food moves downwards in the alimentary canal. Explain.

7th Standard CBSE Science - Nutrition in Plants Three Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Why do organisms need to take food?

  • 2)

    Distinguish between a parasite and a saprotroph.

  • 3)

    How would you test the presence of starch in leaves?

  • 4)

    Show with the help of a sketch that the plants are the ultimate source of food.

  • 5)

    Different modes of nutrition has been observed in plants. What are they? Give example of each.

CBSE 7th Science Unit 18 Wastewater Story Two Marks Question - by Ghosh - Dehradun - View & Read

  • 1)

    Name the toilets used in areas with limited water supply.

  • 2)

    Name the type of toilets which are most suitable for holding an outdoor music festival in a park.

  • 3)

    Mention the use of dried sludge.

  • 4)

    In which type of toilets, human excreta is treated by earthworm?

  • 5)

    Explain sewers and sewage.

7th Standard CBSE Science - Forests: Our Lifeline Two Marks Question - by Ghosh - Dehradun - View & Read

  • 1)

    List some animals which live in deeper areas of the forest.

  • 2)

    Paheli while moving in a forest observed that there was no noise pollution, though lots of heavy vehicles were passing from the nearby highway. Explain why.

  • 3)

    Give names of any four birds which you expect to see in a forest.

  • 4)

    Draw any simple food chain in a pond.

  • 5)

    Would we see similar kind of trees in every forest?

CBSE 7th Science - Water: A Precious Resource Two Marks Question - by Ghosh - Dehradun - View & Read

  • 1)

    Suggest one traditional way of storing water from ancient time.

  • 2)

    The earth looks blue from space. Explain why?

  • 3)

    Reservoir of dam helps us to manage water. How?

  • 4)

    The excessive use of water leads to a severe problem. Write the problem.

  • 5)

     How much of the earth's surface is covered with water?

CBSE 7th Science - Light Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name the colours include in the composition of sunlight.

  • 2)

    In the formation of a rainbow, what acts as tiny prisms?

  • 3)

    Can you get a real image at any distance of the object from the convex mirror?

  • 4)

    Can you name the mirrors used as side mirrors in scooters?

  • 5)

    Consider if one half of a convex lens is covered with a black paper, then state whether this lens produces a complete image of the object

7th Standard CBSE Science - Electric Current and Effects Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name some electric appliances where the heating effect of the electric current is used.

  • 2)

    If the current through the coil stops flowing. Will the coil remain an electromagnet?

  • 3)

    State whether the bulb glows when the circuit is opened.

  • 4)

    What happens to the current in a circuit at the time of short circuit?

  • 5)

    We should not touch the lighted bulb. Explain, why.

7th Standard CBSE Science - Motion and Time Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name the axis that represents dependent variable.

  • 2)

    Briefly explain how will decide which object is moving fast and which one is moving slow.

  • 3)

    Determine the number of seconds there in a day.

  • 4)

    Estimate that how many hours are there in a year.

  • 5)

    Explain how time was measured when pendulum clocks were not available.

CBSE 7th Science - Reproduction in Plants Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    If the filament of Spirogyra is broken into fragments. What will you observe?

  • 2)

    Give one difference between unisexual and bisexual flower.

  • 3)

    Flowers are colourful and fragrant. Give reason supporting the statement.

  • 4)

    Boojho had the following parts of a rose plant-a leaf, roots, a branch, a flower, a bud and pollen grains. Which of them can be used to grow a new rose plant?

  • 5)

    A yellow powdery substance is present in the anther which participates in reproduction process. Name this substance.

CBSE 7th Science - Transpiration in Animals and Plants Two Mark Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name some useful products or materials that are carried by blood.

  • 2)

    Circulatory system consists of three major organs. Name those organs.

  • 3)

    Name the organ which is located in the chest cavity with its lower tip slightly tilted towards the left.

  • 4)

    RBC contains a red coloured pigment which carries oxygen with it. What is the pigment called?

  • 5)

    Blood is a fluid connective tissue. Justify.

7th Standard CBSE Science Uint 10 Respiration in Organisms Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name the end products of anaerobic respiration in yeast.

  • 2)

    In some animals, exchange of gases takes place through its thin and moist skin. Name one such animal.

  • 3)

    In the experiment, where we exhale into lime water containing glass. What changes were observed by you?

  • 4)

    Insects have a special organ present to carry out respiration. What is that organ called?

  • 5)

    All organisms breathe in O2 and CO2, Should be less O2 and excess of CO2 in our environment.

7th Standard CBSE Science - Soil Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    In how many groups the soil has been categorised? Name them.

  • 2)

    Give the formula to calculate the absorption percentage.

  • 3)

    When we add some dry soil to the water in a glass and stir it, bubbles are observed from the soil. What causes these bubbles to raise?

  • 4)

    There are two components of soil one that comes from living thing and other from non-living thing. What are these two components?

  • 5)

    List the substances which pollute the soil.

7th Standard CBSE Science - Winds, Storms and Cyclones Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Why is Chandigarh unlikely to be affected by a cyclone?

  • 2)

    Discuss the major cause of winds.

  • 3)

    Name the ocean which is mainly responsible to bring rain bearing monsoon winds to Kerala coast in June every year.

  • 4)

    Enlist the other names of cyclone.

  • 5)

    Suggest some precautions to be taken to prevent the roof of a tin sheet from flying away during a fierce wind storm.

7th Standard CBSE Science - Weather, Climate and Adaptations of Animals to Climate Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Who are meteorologists?

  • 2)

    Name two countries that show the tropical rainforests.

  • 3)

    Give the name of few animals that can live in the polar region.

  • 4)

    Why is it difficult to predict the weather of a place while it is easy to predict its climate?

  • 5)

    Some animals have the ability to match their surrounding. Name the property of such animals.

7th Standard CBSE Science - Physical and Chemical Changes Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    What kind of change is shown by tearing of paper?

  • 2)

    Melting of wax is a change where a solid changes to liquid state. Give one more such change which you observe in your surroundings.

  • 3)

    Name the gas which turns lime water milky.

  • 4)

    Write the colour of copper sulphate solution obtained when iron nails are dipped in it?

  • 5)

    What colour of flame is observed when magnesium ribbon burnt in air.

7th Standard CBSE Science - Acids, Bases and Salts Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    What name is given to those substances which do not change the colour of either red or blue litmus paper?

  • 2)

    Write the name of two indicators which occur naturally.

  • 3)

    Name the acid present in lemon juice and tomato.

  • 4)

    Name a substance which is used to cure the discomfort caused by indigestion due to over eating.

  • 5)

    Why does a turmeric stain on white shirt is turned to red when it is washed with soap?

7th Standard CBSE Science - Heat Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. What is the reason for this rise in the level of mercury?

  • 2)

    Shopkeepers selling ice blocks usually cover them with jute sacks. Explain why.

  • 3)

    The radiators in cars are painted black. Explain why.

  • 4)

    While constructing a house in a coastal area, in which direction should the windows preferably face and why?

  • 5)

    Name the mode of transfer of heat in which medium is not required.

CBSE 7th Science Unit 3 -Fibre to Fabric Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Name some wool yielding animals

  • 2)

    Write the name of the animal from which wool for pashmina shawls is obtained.

  • 3)

    Name the natural fibre obtained from insects.

  • 4)

    Out of scouring or shearing, which process comes first in the production of wool from sheep?

  • 5)

    Name the stage next to caterpillar in the life cycle of silk moth.

CBSE 7th Science - Nutrition in Animals Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Identify the location of salivary gland.

  • 2)

    Explain the role of mucus secreted by stomach.

  • 3)

    Name the simple forms of carbohydrates, fats and proteins.

  • 4)

    Do you know the functions of the tongue?

  • 5)

    Now write down your observations and label Fig.

CBSE 7th Science Unit 1 Nutrition in Plants Two Marks Questions - by Ghosh - Dehradun - View & Read

  • 1)

    What do you understand by nutrition?

  • 2)

    A unique feature in leaves allows them to prepare the food while other parts of plants cannot. Write the possible reason for this.

  • 3)

    Why is Cuscuta, categorised as a parasite?

  • 4)

    Boojho wants to know how plants prepare their food?

  • 5)

    Boojho wants to know how water and minerals absorbed by roots reach the leaves.

CBSE 7th Social Science Unit 18 Wastewater Story Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Sewage is mainly a

  • 2)

    Which of the following is/are products of wastewater treatment?

  • 3)

    The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as

  • 4)

    One of the following type of trees are said to help in purifying wastewater quite rapidly when planted all along the sewage ponds. These are

  • 5)

    Which one of the following is a quality of wastewater?

CBSE 7th Social Science - Forests: Our Lifeline Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following statements is incorrect?

  • 2)

    Pick the option which gives the names of a tree and an animal respectively from the following.

  • 3)

    Which of the products is not obtained from a forest?

  • 4)

    Which of the following is not a correct statement?

  • 5)

    Which one of the following is a role of forests?

CBSE 7th Social Science Unit 16 Water: A Precious Resource Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Choose the correct option. The total water

  • 2)

    The groundwater when collects between the layers of hard rocks is called

  • 3)

    Which of the following does not show water shortage?

  • 4)

    Renewable resources need to be conserved because

  • 5)

    The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of

CBSE 7th Social Science Unit 15 Light Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size, whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli respectively are

  • 2)

    You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens To obtain an enlarged image of an object, you can use either 

  • 3)

    A rainbow can be seen in the sky

  • 4)

    An erect and enlarged image can be formed by

  • 5)

    You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from

CBSE 7th Social Science Unit 14 Electric Current and Effects Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Choose the statement which is not correct in the case of an electric fuse.

  • 2)

    If the number of turns in the coil of an electromagnet is more, the strength of the electromagnet will be

  • 3)

    Which of the following precautions need not be taken while using electric gadgets/ appliances/circuit?

  • 4)

    A battery is a combination of

  • 5)

    The coil of wire contained in heater is known as

7th Standard CBSE Science - Motion and Time Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following relations is correct?

  • 2)

    What is the relation between distance and speed?

  • 3)

    How will you convert the speed given in km/h to m/s?

  • 4)

    If we denote speed by S, distance by D and time by T, the relationship between these quantities is

  • 5)

    Which one records the distance travelled by a vehicle?

7th Standard CBSE Science Unit 12 Reproduction in Plants Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    The reproductive part of a plant is the

  • 2)

    Bryophyllum can reproduce by its

  • 3)

    The 'eye' of the potato plant is what?

  • 4)

    Lila observed that a pond with clear water was covered up with a green algae within a week.
    By which method of reproduction did the algae spread so rapidly?

  • 5)

    The ovaries of different flowers may contain

7th Standard CBSE Science - Transpiration in Animals and Plants Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    In plants, water is transported through

  • 2)

    Water absorption through roots can be increased by keeping the plants

  • 3)

    The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in

  • 4)

    A certain type of cells helps in destruction of disease-causing microorganisms are known as

  • 5)

    The lower chambers of heart is called

CBSE 7th Science - Soil Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    The water holding capacity is the highest in

  • 2)

    The soil that can be moulded into any shape is

  • 3)

    Soil conservation measures are mainly aimed at protecting which of the following?

  • 4)

    Percolation rate is measured in unit

  • 5)

    Weathering is a very............. process

CBSE 7th Science - Respiration in Organisms Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    In cockroaches, air enters the body through

  • 2)

    Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?

  • 3)

    Yeast is used in wine and beer industries because it respires

  • 4)

    Fish breathe with the help of gills which are richly supplied with blood vessels. The gills help the fish to

  • 5)

    Earthworms and frogs breathe through their skin because of which the skin of both the organisms is

10th Standard CBSE Social Science Unit 8 Winds, Storms and Cyclones Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Which one of the following places is unlikely to be affected by a cyclone?

  • 2)

    Orissa was hit by a cyclone with wind speed of 200 km/h on which date

  • 3)

    Wind is caused due to

  • 4)

    Increased wind speed is accompanied with

  • 5)

    The calm centre of cyclone is called

10th Standard CBSE Social Science - Weather, Climate and Adaptations of Animals to Climate Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in

  • 2)

    Out of the given definitions, which is the most appropriate definition of climate? 

  • 3)

    The country having polar climate is

  • 4)

    The arboreal animal among the following is

  • 5)

    Which of the following statements is incorrect for penguins?

7th Standard CBSE Science Unit 6 Physical and Chemical Changes Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following is a physical change?

  • 2)

    A chemical change may involve

  • 3)

    A man painted his main gate made up of iron, to

  • 4)

    Galvanisation is a process used to prevent the rusting of which of the following?

  • 5)

    Which of the following statements is incorrect for a chemical reaction?

7th Standard CBSE Science Unit 5 Acids, Bases and Salts Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Consider the following statements:
    (i) Both acids and bases change colour of all indicators.
    (ii) If an indicator gives a colour change with an acid, it does not give a change with a base.
    (iii) If an indicator changes colour with a base, it does not change colour with an acid.
    (iv) Change of colour with an acid and a base depends on the type of the indicator.
    Which of the above statements is/are correct?

  • 2)

    Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions respectively are

  • 3)

    When the soil is too basic, plants do not grow well in it. To improve its quality, what must be added to the soil?

  • 4)

    Neutralisation reaction is a

  • 5)

    Which of the following is an acid-base indicator?

7th Standard CBSE Science - Fibre to Fabric Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    The silkworm is (i) a caterpillar, (ii) a larva.

  • 2)

    Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the following would be the right gift for her to buy?

  • 3)

    Silkworms secrete fibre made of

  • 4)

    Lohi and nali are breeds of ______

  • 5)

    Wool dissolves in ____ and _______

7th Standard CBSE Science - Heat Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will

  • 2)

    Heat always flows

  • 3)

    Paheli and Boojho measured their body temperature. Paheli found her to be 98.6°F and Boojho recorded 370C. Which of the following statements is true?

  • 4)

    Four arrangements to measure temperature of ice in beaker with laboratory thermometer are shown in figure (a, b, c, d). Which one of them shows the correct arrangement for accurate measurement of temperature?

  • 5)

    The thermometer used to measure human body temperature is called ______ thermometer.

7th Standard CBSE Science Unit 1 Nutrition in Animals Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Water from the undigested food is absorbed mainly in the

  • 2)

    The acid present in the stomach

  • 3)

    The finger-like outgrowths of Amoeba helps to ingest food. However, the finger-like outgrowths of human intestine helps to

  • 4)

    _____ is the process of taking food inside the body.

  • 5)

    Amoeba digests its food inside _____

7th Standard CBSE Science Nutrition in Plants Book Back Questions - by Ghosh - Dehradun - View & Read

  • 1)

    Amarbel is an example of

  • 2)

    The raw material used by plants during photosynthesis

  • 3)

    Pitcher plant traps insects because it

  • 4)

    When we observe the lower surface of a leaf through a magnifying lens, we see numerous small openings. Which of the following is the term given to such openings?

  • 5)

    __________________ plants derive their nutrient from dead and decaying animals or plants.

7th Standard CBSE Science - Soil One Mark Question and Answer - by Ghosh - Dehradun - View & Read

  • 1)

    The water holding capacity is the highest in

  • 2)

    B-horizon is also called as

  • 3)

    Which one does not cause erosion of soil?

  • 4)

    The water holding capacity is the least in

  • 5)

    Removal of which part of a soil layer is called soil erosion?

7th Standard CBSE Science - Winds, Storms and Cyclones One Mark Question with Answer Key - by Ghosh - Dehradun - View & Read

  • 1)

    Which one of the following places is unlikely to be affected by a cyclone?

  • 2)

    Which of the statements given below is correct?

  • 3)

    The winds from oceans which carry water and bring rain are called:

  • 4)

    The atmospheric pressure is measured by:

  • 5)

    The lightning conductor used to protect high rise buildings is made of:

7th Standard CBSE Science - Weather, Climate and Adaptations of Animals to Climate One Mark Question and Answer - by Ghosh - Dehradun - View & Read

  • 1)

    A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in

  • 2)

    Which features adapt polar bears to live in extremely cold climate?

  • 3)

    Maximum temperature of the day occurs generally in:

  • 4)

    All the changes of weather are caused by:

  • 5)

    The tropical desert climates is found in:

7th CBSE Science Unit 6 Physical and Chemical Changes One Mark Question with Answer Key - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following is a physical change?

  • 2)

    A chemical change may involve

  • 3)

    Galvanisation is a process used to prevent the rusting of which of the following?

  • 4)

    What is the formula of rust?

  • 5)

    Which one is a chemical change?

7th Standard CBSE Science Unit 5 Acids, Bases and Salts One Mark Question and Answer - by Ghosh - Dehradun - View & Read

  • 1)

    Consider the following statements:
    (i) Both acids and bases change colour of all indicators.
    (ii) If an indicator gives a colour change with an acid, it does not give a change with a base.
    (iii) If an indicator changes colour with a base, it does not change colour with an acid.
    (iv) Change of colour with an acid and a base depends on the type of the indicator.
    Which of the above statements is/are correct?

  • 2)

    Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed?

  • 3)

    Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions respectively are

  • 4)

    When the soil is too basic, plants do not grow well in it. To improve its quality, what must be added to the soil?

  • 5)

    Neutralisation reaction is a

7th CBSE Science Unit 4 Heat One Mark Question and Answer - by Ghosh - Dehradun - View & Read

  • 1)

    An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will

  • 2)

    A wooden spoon is dipped in a cup of icecream, then its other end

  • 3)

    Stainless steel pans are usually provided with copper bottoms. The reason for this could be that

  • 4)

    Heat is a form of:

  • 5)

    Cooking utensils are made of metals because they are:

7th CBSE Science Unit 3 Fibre to Fabric One Mark Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    The silkworm is (i) a caterpillar, (ii) a larva.

  • 2)

    Selective breeding is a process of

  • 3)

    The general process that takes place at a sheep shearing shed is

  • 4)

    Reeling of silk is

  • 5)

    Silkworms secrete fibre made of

7th CBSE Science Unit 2 Nutrition in Animals One Mark Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following pair of teeth differ in structure but are similar in function?

  • 2)

    The acid present in the stomach

  • 3)

    The finger-like outgrowths of Amoeba helps to ingest food. However, the finger-like outgrowths of human intestine helps to

  • 4)

    The absorption of nutrients or food components in its simpler form takes place in

  • 5)

    Cud is the name given to the food of ruminants which is

7th Standard CBSE Science Unit 1 Nutrition in Plants One Mark Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    Amarbel is an example of

  • 2)

    In the process of photosynthesis, which of the following energy conversions occur?

  • 3)

    Pitcher plant traps insects because it

  • 4)

    Insectivorous plant among the following is

  • 5)

    During photosynthesis:

7th CBSE Science Electric Current and Effects Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    If the number of turns in the coil of an electromagnet is more, the strength of the electromagnet will be

  • 2)

    Which of the following characteristic is most suitable material for making the care of an electromagnet?

  • 3)

    The coil of wire contained in heater is known as

  • 4)

    A battery is a group of

  • 5)

    Which depends only on the heating effect of current?

7th Standard CBSE Science Motion and Time Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    Which of the following relations is correct?

  • 2)

    What is the relation between distance and speed?

  • 3)

    How will you convert the speed given in km/h to m/s?

  • 4)

    The correct symbol to represent the speed of an object is

  • 5)

    Boojho walks to his school which is at a distance of 3 km from his home in 30 min. On reaching, he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 min. His average speed in km/h is

7th Standard CBSE Science Reproduction in Plants Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    The reproductive part of a plant is the

  • 2)

    Seeds of drumstick and maple are carried to long distances by wind because they possess.

  • 3)

    The ovaries of different flowers may contain

  • 4)

    The female gamete of a flowering plant is present in which part?

  • 5)

    Coconut is dispersed by:

7th Standard CBSE Science Transpiration in Animals and Plants Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    In plants, water is transported through

  • 2)

    The organ which controls the blood circulation in body is

  • 3)

    The filtration of blood is done by

  • 4)

    The colour of blood is red due to the presence of:

  • 5)

    The rhythmic expansion and contraction of the heart is called ____________.

7th Standard CBSE Science Unit 10 Respiration in Organisms Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    In cockroaches, air enters the body through

  • 2)

    During the process of exhalation, the ribs move

  • 3)

    Minimum loss of energy takes place while we are

  • 4)

    Yeasts are used in

  • 5)

    Which of the following organism can respire anaerobically?

7th Standard CBSE Science Soil Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    Humus helps in making soil

  • 2)

    The soil that can be moulded into any shape is

  • 3)

    Soil absorbs water due to its

  • 4)

    The hardest layer of the soil is

  • 5)

    Percolation rate is highest in

7th Standard CBSE Science Unit 8 Winds, Storms and Cyclones Model Question Paper - by Ghosh - Dehradun - View & Read

  • 1)

    Which one of the following places is unlikely to be affected by a cyclone?

  • 2)

    Orissa was hit by a cyclone with wind speed of 200 km/h on which date

  • 3)

    Wind is caused due to

  • 4)

    Increased wind speed is accompanied with

  • 5)

    Orissa was hit by a cyclone in the year:

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CBSEStudy Material - Sample Question Papers with Solutions for Class 7 Session 2019 - 2020

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