Y8 - topic 2 - lesson 2/3: Chemical and physical changes

What is being described: A change that occurs when one or more substances change into entirely new substances with different properties.

• chemical change

• physical change

What is being described: A change in a substance that does not involve a change in its identity (the particles are the same, but they are behaving differently).

• chemical change

• physical change

A physical change is: a change in a substance that does not involve a change in its identity (the particles are the same, but they are ___________ differently).

A chemical change is a change that occurs when one or more substances change into entirely new substances with different properties (the atoms are joined together in _____ arrangements).

Which of the following is a chemical change?

• dissolving sugar in tea

• boiling a kettle of water

• melting chocolate

• baking a cake

Which of the following is a physical change?

• a nail rusting

• snow melting

• frying an egg

• wood burning

Which of the following is NOT a chemical change?

• meat cooking in an oven

• milk turning sour

• boiling an egg

• salt added to soup

Which of the following is NOT a physical change?

• sugar added to tea

• perfume evaporating

• nail rusting

• water boiling