Question

1. Classify the following
• boiling of water to form steam
passing of electric current,
through water and the water
breaking down into hydrogen
chemical or physical changes:
• cutting of trees,
• melting of butter in a pan,
• rusting of almirah,
and oxygen gases,
• dissolving common salt in
water,
• making a fruit salad with raw
fruits, and
• burning of paper and wood,
2. Try segregating the things
around
you as pure substances
or mixtures.​

Answer 1

Answer:

• boing water is physical
• cutting trees is physical
• melting is physical
• rusting is chemical becoz air and water reaction takes place
• dissoving is an physical changes
• mixing a fruit salad is physical
• butind is also physical
• segregating is physical