We get eggs from

Which one of the following food items does not provide dietary fibre?

Separation of seeds from cotton bolls is known as:

Pick one material from the following which is completely soluble in water.

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

Which of the following changes can not be reversed?

Pollen grains are produced in_________?

This joint helps the bowler in the game of cricket___________.

Global warming increases the concentration of ___________ in the atmosphere

Curved length can be measured by :

A student observes a tree given in figure through a pinhole camera. Which of the diagrams given in figure. (a) to (d) depicts the image seen by her correctly?

Choose the figure from the options (a), (b), (c) and (d) given below which shows the correct direction of current.

In a magnet, the regions of maximum attraction are:

Transpiration is a process in which plants

During photosynthesis, plants take in 

Which of the following is a bio-degradable waste?

Perform an activity by taking some seeds of chana (Bengal gram) or moong (green gram). Put them in a vessel containing water and keep it overnight. The next day, wrap them in a piece of wet cloth and keep them aside for another day. What changes do you observe in the seeds?

(a) List all those components of food that provide nutrients.
(b) Mention two components of food that do not provide nutrients.

Which two crops were cultivated near the river Nile and were used for making fabrics?

Write two objects through which things can be seen clearly.

Temperature affects the solubility of solids in liquids. Explain.

Melting of wax is a irreversible change. Is it correct?

Generally, a leaf performs the function of photosynthesis. Does the stem prepare food for any plant?

Name the organs that are protected by the rib cage.

Write the most common characteristics of plants found in deserts.

Give two examples of a periodic motion

Name the things other than source of light and opaque object required to see the shadow.

A fused bulb does not glow. Why? 

Is the soil a magnetic or a non-magnetic material?

Oceans are the biggest sources of water, yet they are not fit for human consumption. Why?

Policemen use the masks for what reason?

List some items of waste materials which cannot be used for vermicomposting.

Ravi does not eat enough food per day. His mother advised him to eat enough food.
(a) What are the functions of food?
(b) What values were shown by his mother?

(a) What are carbohydrates? Give an example.
(b) In which forms are carbohydrates found in our food?

Classify the following fibres as natural or synthetic:

What do you mean by the hardness of materials? Explain with an example

What is sedimentation? Give an example.

Differentiate between physical and chemical changes. Give two examples.

If a plant has leaves with reticulate venation, what kind of roots will it have?

The body of the fish is similar to the boat. Explain, how does fish move in water.

Two animals X and Y are present in the same habitat called grassland. The animal X is a herbivore. It has eyes on the sides of its head and big ears. It is very agile animals. The animal Yis a carnivore. It has eyes in the front of the head. This animal has long, strong sharp claws in its front legs which can tear flesh easily and withdraw inside the toes. It also runs very fast.
(a) Can you recognise animal X and Y?
(b) List the benefit of animal X or having eyes on the sides of the head?
(c) Mention the advantage of animal Yfor having eyes in front of its head?

The height of a person is 1.65 m. Express it into cm and mm.

Correct the following statements.
(a) The colour of)he shadow of an object depends on its colour.
(b) Transparent objects allow light to pass through them partially.

When the chemicals in the electric cell are used up, the electric cell stops producing electricity. The electric cell is then replaced with a new one. In case of rechargeable batteries (such) as the type used in mobile phones, cameras and inverters), they are used again and again. How?

Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.

To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.

What is the composition of air?

What is waste management? Is garbage disposal the responsibility of the government?

Given figure shows some insects and a place where it collects its food.

(a) Name the insect and the place where it lives as shown in the figure.
(b) What is the food of this insect?
(c) How does it help farmers while collecting its food?
(d) Name the product we collect from this insect.
(e) Name the nutritive constituents of the insect.

(a) Which components of food are known as protective foods?
(b) Which food provides water to our body?
(c) Why should vegetables not be washed after cutting? Why should food not be overcooked?

A cotton shirt, before it reaches you, completes a long journey. Elaborate this journey starting from cotton bolls.

Kavita bought new silver anklets. After a month, she found that the anklets had lost their lustre and turned black. She had doubts that they were not made of pure silver. But her mother told her that they were of pure silver. She washed her silver anklets with lemon juice and found that the silver anklets had get the lustre back.
Read the above passage and answer the following questions.
(a) Do you think that the anklets are not of pure silver?
(b) Why silver anklets lost their lustre after some time?
(c) What values were shown by Kavita's mother?

Paheli was feeling thirsty but there was only a pot of water at home which was muddy and unfit for drinking. How do you think Paheli would have made this water fit for drinking if the following materials were available to her?
Alum, tub, muslin cloth, gas stove, thread, pan and lid.

Paheli mixed flour and water and
(a) made a dough,
(b) rolled the dough to make a chapati,
(c) baked the chapati on a pan,
(d) dried the chapati and ground it in a grinder to make powder.
Identify the changes (a) to (d) as the changes that can be reversed or that cannot be reversed.

Sarita was interested in knowing more about plants and its parts. She started exploring and collecting plants. She wanted to preserve them, so that she can have a good collection of plants.
(a) Suggest the steps to help her in identifying plants.
(b) Is there any other method to identify plants Explain.
(c) What are the values shown by Sarita?

How is the skeleton of a bird well-suited for flying?

Like many animals although a car also moves it is not considered as a living organism. Give two or three reasons.

How can we find the length of a curved line? Explain.

Explain about solar eclipse and lunar eclipse. Also, give the ray diagrams.

Think of six activities which use electric current Also name the devices used to perform the activity.

Given below is a figure which shows a magnetic compass. Briefly explain what will happen to the position of its needle if you bring a bar magnet near it. Also, draw a diagram to show the effect on the needle on bringing the bar magnet near it. Also, draw the diagram to show the effect when the other end of the bar magnet is brought near it.

State different uses of water

Explain what makes the carbon dioxide gas present in air necessary for all in the atmosphere.

Vermicompost produced from kitchen waste is far more better than chemical fertilisers. Why?