Front

What is the process of a liquid turning into a gas?

Back

Evaporation.

Front

What type of change does not alter the chemical composition of a substance?

Back

Physical change.

Front

Is melting butter for popcorn a chemical or physical change?

Back

Physical change.

Front

In an endothermic reaction, what happens to heat?

Back

Heat is taken in or absorbed.

Front

What is an example of an exothermic reaction?

Back

Burning of wood.

Front

What is a chemical change?

Back

A process that alters the chemical composition of a substance.

Front

What is a physical change?

Back

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

Front

What is the definition of an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

Front

What is the definition of an exothermic reaction?

Back

A reaction that releases heat to its surroundings.

Front

What happens during condensation?

Back

A gas turns into a liquid.