Matter Unit Vocabulary

Front

What is matter?

Back

Matter is anything that has mass and occupies space.

Front

What is temperature?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is heat?

Back

Heat is the total energy transferred between objects due to a temperature difference.

Front

What is the difference between an element and a compound?

Back

An element is made up of only one type of atom, while a compound is made up of molecules that contain two or more different types of atoms.

Front

What happens when a solid changes to a liquid?

Back

The process requires an input of energy, usually in the form of heat.

Front

What is the rule to determine if something is matter?

Back

Matter has mass and occupies space.

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 occurs when a substance transforms into a different substance with different properties.

Front

What is the state of matter?

Back

The state of matter refers to the distinct forms that different phases of matter take on, primarily solid, liquid, and gas.

Front

What is the process of evaporation?

Back

Evaporation is the process by which molecules at the surface of a liquid gain enough energy to enter the gas phase.