Which parts of an onion plant do we eat?

The energy-providing nutrients are:

Copper metal is a

Which amongst the following methods would be most appropriate to separate grains from bundles of stalks?

Which is a way to make a change happen?

How many muscles work together to move a bone?

One decametre is equal to

Four pieces of wooden sticks A, B, C and D are placed along the length of 30 cm long scale as shown in Fig. Which one of them is 3.4 cm in length.

When we move up in air, the temperature becomes:

What is not true about air?

Animals that eat other animals are called _________.

Eating too much of fat-rich foods may lead to a condition called ________.

Which type of foods are known as body-building foods?

Flowers of which plants are used as vegetables?

Are there any ingredients in food which do not provide any nutrients?

Name the place where an organism lives and gets its food.

Name the type of motion possessed by planet around the sun.

Complete the following table. WIll bulb glow or not?

Name some of the devices in which electric cells are used.

Why should we avoid wastage of food?

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

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?

Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.
(a) Shyam measured it with a half metre long thread.
(b) Gurmeet measured it with a 15 cm scale from her geometry box.
(c) Reena measured it using her handspan.
(d) Salim measured it using a 5 m long measuring tape.
Which one of them would get the most accurate length? Give reasons for your answer.

List some differentiating features between composting and vermicomposting.

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.

Observe the items given in fig. carefully and answer the questions that follow.

(a) Food item rich in carbohydrates is _______
(b) Egg is a rich source of protein, the mineral, ________ and vitamin _________
(c) _______ is a rich source of fat.
(d) Milk provides ________, vitamin D and ________ (mineral)
(e) _______ (fruit) is a rich source of vitamin A.
(f) Spinach is a good source of the mineral _________
(g) Both eggs and ________ are rich in ________.

Read the functions of parts of a plant given below:
(a) fixes plant to the soil
(b) prepares starch
(c) takes part in reproduction
(d) supports branches and bears flowers in the diagram given in figure, write the names of the parts whose function you have just read at the appropriate space. 

Draw the veins of leaves given in figure below and write the type of venation.

Rishi was playing football with his friends. While playing football he fell down and started crying. On seeing him crying, his friends rushed to him and found that he was unable to move his right leg. His friends took him to his house. His father immediately rushed him to a doctor. Doctor diagnosed that his leg was fractured.
(a) Can you suggest, how did doctor diagnose in Rishi's leg?
(b) What do X-rays show us?
(c) What are the values shown by Rishi's friends?

Gimmy went for holidays with her parents for few weeks. She kept a plant in her room and before going away she placed it near her window and water it sufficiently. After her return, she saw that plant in her room has bend towards window from where light was coming. She observed this behaviour and asked her teacher questions about it in the class .
(a) What happened to the plant?
(b) (i) Do ail living things show this characteristic?
     (ii) Give another example showing this characteristic.
(c) From this incident, what values do you think Gimmy has?

It is not accurate to measure a length with elastic tapes. Explain why.

What is a shadow? Explain a simple process for shadow formation.

Describe the steps involved in the magnetising of an iron strip with the help of a magnet.

Draw a diagram to show how sea water reaches a lake or pond?

Give an experiment to show that one-fifth of air is oxygen.

Answer the following questions in one or two words or sentences.
(a) Why should we prefer to use paper bags rather than polythene bags?
(b) Who out of the following, should properly dispose of the garbage-father, mother, elder brother, younger sister?
Which one out of beetles, roundworm and earthworm are used for vermicomposting and why?