Matter and Energy STAAR Review

Front

Starting substances on the LEFT of the arrow are:

Back

reactants

Front

Substances to the RIGHT of the arrow are:

Back

products

Front

Element with a symbol of H is:

Back

Hydrogen

Front

Temperature change, color change, and formation of a new substance are evidence for a:

Back

Chemical reaction

Front

The smallest part of an element is called:

Back

atom

Front

A substance made of two or more different elements bonded together is called:

Back

compound

Front

The basic unit of a chemical element is:

Back

atom

Front

A combination of two or more atoms is called:

Back

molecule

Front

The process of a substance changing from a solid to a liquid is called:

Back

melting

Front

The process of a substance changing from a liquid to a gas is called:

Back

evaporation