Water — Science STD 6 — Question

How can you make an iron strip into a magnet?

Is it possible for you to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper?

How is air important for life on the earth?

What is the function of vitamins?

A bar magnet has no markings to indicate its poles. How would you find out near which end its North pole is located without using another magnet?

What are domestic wastes? Give some examples.

How can you contribute towards enhancing the green cover of your locality? Make a list of actions to be taken.

How does curd set? Is this change reversible?

Is air a good or a bad conductor of electricity?

Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?