Describe how crystals of copper sulphate are prepared.
Important Questions on Physical and Chemical Changes
Cutting grass
Identify if the given change is a chemical change or not. Give reasons for your answers.
Burning toast
Identify if the given change is a chemical change or not. Give reasons for your answers.
Making tea with a tea bag and water.
Identify if the given change is a chemical change or not. Give reasons for your answers.
Frying an egg
Identify if the given change is a chemical change or not. Give reasons for your answers.
Combustion of petrol in a car
Identify if the given change is a chemical change or not. Give reasons for your answers.
Ironing of clothes
Identify if the given change is a chemical change or not. Give reasons for your answers.
Preparing custard from milk
Identify if the given change is a chemical change or not. Give reasons for your answers.
Drying wet hair
