HUNT-Science MAP Review 1

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and hammering wood.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a change in the chemical composition of the substance. Examples include rusting, burning, and cooking.

Front

What happens to ice when it is heated by the sun?

Back

The ice changes from solid to liquid as it melts when heated by the sun.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water turns into water vapor (gas) when it is heated.

Front

What is condensation?

Back

Condensation is the process by which water vapor (gas) cools and changes back into liquid water.

Front

What is the difference between a physical and chemical reaction?

Back

A physical reaction does not change the chemical composition of a substance, while a chemical reaction does change the chemical composition and forms new substances.

Front

What is an example of a chemical reaction?

Back

An example of a chemical reaction is when vinegar and baking soda are mixed, producing carbon dioxide gas.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

What is the role of heat in changing states of matter?

Back

Heat can cause matter to change states, such as melting (solid to liquid) or evaporation (liquid to gas).

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.