Physical and Chemical Changes

Front

What are changes in which one or more new substances are formed called?

Back

Chemical changes.

Front

What type of change is burning wood?

Back

Chemical change.

Front

What type of change is chewing food?

Back

Physical change.

Front

The formation of the compound molecule salt (NaCl) is a what type of change?

Back

Chemical change.

Front

What type of change is rusting?

Back

Chemical change.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Melting ice.

Front

Give an example of a chemical change.

Back

Burning paper.

Front

What happens to the molecules during a physical change?

Back

The molecules rearrange but do not change their chemical structure.