Question

Q1. Observe preparation of dishes at your home.
i. Identify two changes that are caused by heating and cooling.
ii. Identify any two changes that are caused by mixing of two or more things.

Answer 1

Answer:

i.1. if we heating water then it get vaporized. It molecules getting fat from each other.

2.if we cooling water then it's molecules get close to each other .

ii.1.if we mixing two or more things then it make new thing.

2.if we mixing two or more things then it color get changed.

Answer 2

1) Identify two changes that are caused by heating and cooling.

a) When we heat ice it melts and turns into a liquid which is water and when we cool the water it turns into ice.

b) When we heat water it gets hot and when we cool it, it gets a normal temperature.

2) identify any two changes that are caused by the mixing of two or more things.

a) When we mix the white color into the pink color it forms red color because it was mixed.

b) When we mix 2 different colors of clays and role it, it will change as a mixed role of a clay.

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