Question

explain crystallization with an activity for class 7

Answer 1

Answer:

Crystallisation: A physical change

Crystallisation: A physical changeSimilarly crystals of copper sulphate can be obtained by adding copper sulphate powder to the boiling solution of water and dilute sulphuric acid. This mixture when filtered and allowed to cool produces crystals of copper sulphate.

Answer 2

Answer:

Two common methods of crystallization are “gradual cooling” and “diffusion

Ice and snowflakes are great examples ofthe crystallization of water.

Crystallisation is a physical change

Similarly crystals of copper sulphate can be obtained by adding copper sulphate powder to the boiling solution of water and dilute sulphuric acid. This mixture when filtered and allowed to cool produces crystals of copper sulphate.

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