Physical and chemical reactions

No new substance is produced during a 'physical change'

• True

• False

Which of the following is not an example of a physical change occurring?

• Change in shape

• Expansion (gets bigger)/contraction (gets smaller)

• Change of state (solid, liquid, gas)

• Change in colour

Is crushing a can of coke an example of a physical change?

• Yes

• No

Bending a metal rod is an example of a...

• Physical change

• Chemical change

Which term best describes what is happening to the ice-cream?

• Condensation

• Melting

• Sublimation

• Evaporation

A frosted window in winter is an example of a gas turning into a liquid. This is called

• Evaporation

• Deposition

• Condensation

• Melting

Why is a ball pit a mixture that can be considered a 'physical change'?

• It's not a mixture

• Because the balls mixed together make a new shape

• Because once the balls mix, the mixture is considered irreversible which is a sign of a 'physical change'

• When the different coloured balls mix in the pit, they do not form new balls which make new colours

Which of the following is an example of a physical change?

• 
• 
• 
• 

How do you know if a chemical change occurred?

• No new substances are formed

• Two solutions must have mixed to form a new mixture

• A change of state had to have occurred

• A new substance is formed

Which of the following does not relate to a chemical change occurring?

• Change in colour

• Change in temperature

• Expansion

• Bubbles