Unit 2.2: Physical & Chemical Changes FLASHCARDIZZ

Front

What is a chemical change?

Back

A change that occurs when substances change into entirely new substances with different properties.

Front

What is a physical change?

Back

A change of matter from one form to another without a change in chemical properties.

Front

Example of a chemical change?

Back

Copper corroding and turning green over time.

Front

Example of a physical change?

Back

A pencil being sharpened and writing on paper.

Front

What happens during a chemical change?

Back

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

Front

What happens during a physical change?

Back

The form of the matter changes, but its chemical composition remains the same.

Front

Is melting ice a chemical or physical change?

Back

Physical change.

Front

Is boiling an egg a chemical or physical change?

Back

Chemical change.

Front

What is an example of a reversible physical change?

Back

Ice melting into water.

Front

What is an example of an irreversible chemical change?

Back

Burning wood.