Changes in Matter Test Review

Front

What is a chemical change?

Back

A chemical change results in a different kind of matter.

Front

Does the mass of an object change when it is broken into pieces?

Back

No, the mass remains the same.

Front

What evidence shows that a chemical change has occurred?

Back

Evidence includes changes in color, temperature, or the formation of gas or rust.

Front

What happens to wood when it is left outside in the rain?

Back

It can become softer due to water absorption.

Front

What is a physical change?

Back

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

Front

What is an example of a physical change?

Back

Snapping a twig in half.

Front

What is an example of a chemical change?

Back

Burning wood in a campfire.

Front

How can you tell if fruit is starting to decay?

Back

It starts to change color.

Front

What happens to metal when it rusts?

Back

It undergoes a chemical change.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not change the substance's identity, while a chemical change does.