States of Matter

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume. The particles in a solid are closely packed together and vibrate in place.

Front

What is a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container. The particles in a liquid are close together but can move past one another.

Front

What is a gas?

Back

A gas is a state of matter that has no definite shape or volume. The particles in a gas are far apart and move freely.

Front

What happens to the particles in a liquid when it boils?

Back

When a liquid boils, its particles gain enough energy to break free from each other and turn into gas.

Front

What is the boiling point of water?

Back

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure.

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.

Front

What is a chemical change?

Back

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

Front

What happens to the reactivity of a substance during a physical change?

Back

The reactivity of a substance does not change during a physical change.

Front

What is an example of a gas created from a chemical reaction?

Back

An example of a gas created from a chemical reaction is carbon dioxide, which is produced when vinegar and baking soda are mixed.

Front

What is the freezing point of water?

Back

The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit) at standard atmospheric pressure.