Physical and Chemical Changes

Front

What is another name for a chemical change?

Back

Chemical reaction.

Front

What is an example of melting?

Back

Heating a block of ice until it all turns to water.

Front

True or False: The state of matter cannot be changed depending on whether heat is added or removed.

Back

False.

Front

What is an example of a liquid turning into a gas?

Back

Boiling water to create steam.

Front

True or False: When changing a solid to a liquid thermal energy is removed for melting.

Back

False.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without changing its chemical composition.

Front

What happens during a chemical change?

Back

The substances involved are transformed into different substances with new properties.

Front

What is an example of a chemical change?

Back

Rust forming on iron.

Front

What is freezing?

Back

The process of a liquid turning into a solid when heat is removed.

Front

What is evaporation?

Back

The process of a liquid turning into a gas when heat is added.