Changes Around Us — Science STD 6 — Question

What do you understand by the word ‘classification’?

Paheli and her friends were decorating the class bulletin board. She dropped the box of stainless steel pins by mistake. She tried to collect the pins using a magnet. She could not succeed. What could be the reason for this?

State whether the following statements are true or false.
A mixture of oil and water can be separated by filtration.

In which direction does freely suspended magnet rest?

Give an example of animal which can walk, climb and fly in the air.

Is steaming of idli batter to make idli a reversible change? Give reasons to support your answer.

What is water conservation?

Name the following:
The nutrients that are needed for the growth and maintenance of our body.

What is movement?

Name the petroleum product which is commonly used for electric generators.