Chemical and Physical Changes

Front

Substances that change in appearance but not in composition are an example of a ___ change.

Back

physical

Front

Using a hot plate to heat a solid until it changes color and releases an odor would provide evidence of a chemical change because the particles cannot be changed back. This is what type of change?

Back

chemical

Front

Which number shows the particles as a gas?

Back

3

Front

A substance with a definite shape and volume is a ___.

Back

solid

Front

Which number shows the particles as a solid?

Back

1

Front

What is a chemical change?

Back

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

Front

What is a physical change?

Back

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

Front

What is an example of a physical change?

Back

Melting ice into water.

Front

What is an example of a chemical change?

Back

Burning wood.

Front

What happens to the particles in a solid?

Back

They are closely packed together and vibrate in place.