Properties and Composition of Matter

Front

What is a physical change?

Back

A physical change is just a change in appearance but does not make a new substance.

Front

When can chemical properties be observed?

Back

Chemical properties can only be observed during a chemical change.

Front

What are metalloids?

Back

Metalloids have properties of both metals and nonmetals.

Front

What is an example of a physical property?

Back

Color is an example of a physical property that can be observed with your senses.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is not mixed evenly, such as a salad.

Front

What is a chemical change?

Back

A chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What distinguishes metals from nonmetals?

Back

Metals are typically shiny, malleable, and good conductors of heat and electricity.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is evenly mixed, such as sugar water.

Front

What is flammability?

Back

Flammability is a chemical property that describes how easily a substance can catch fire.