Grade 8 Science Review

Which is a physical change?

• burning match 
• vinegar in baking soda 
• melting butter
• cooking an egg

Which of the following is a sign that a chemical change has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Rotting fruit

• Chemical
• Physical

A nail gets rusty

• Chemical
• Physical

Make a paper airplane

• Chemical
• Physical

Cut up a piece of wood.

• Chemical
• Physical

Ripping up paper

• Chemical
• Physical

One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

• evaporation; chemical change
• condensation; physical change 
• evaporation; physical change
• condensation; chemical change

Pepsi is a . . .

• Heterogeneous mixture
• homogeneous mixture
• Element
• Compound

Italian Salad Dressing is a . . .

• heterogeneous mixture
• homogeneous mixture
• Pure Substance
• Compound