What is a chemical change? Explain with example.

How does curd being set? Is this change reversible?

Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.

What happens when sugar is heated?

What is a physical change? Explain with example.

Write some changes happening in our body.

What are slow and fast changes? Give examples.

Why does a blacksmith heat the metal rim to fix it on a cart wheel?

Can you change the shape of a eraser after erasing?

Does the size of the paper change after making an aeroplane by folding it or by cutting it?

Can you say deforestation is an irreversible or reversible change?