U2Q2 Review

Front

What type of change occurs when burning a marshmallow over a campfire?

Back

Chemical change

Front

What is an example of a chemical change?

Back

A banana rotting

Front

When a substance undergoes a change, is it gaining or losing energy?

Back

Losing energy

Front

What is a physical change?

Back

A change that doesn't change the identity of the substance.

Front

What determines the temperature of a substance?

Back

The speed of the molecules.

Front

What is a chemical change?

Back

A process that transforms a substance into a different substance.

Front

What happens to the molecules during a chemical change?

Back

They rearrange to form new substances.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the identity of a substance, while chemical changes do.

Front

What is an indicator of a chemical change?

Back

Production of gas, change in color, or formation of a precipitate.