Properties of Matter

Front

What is the process of changing matter from one state to another by adding or taking away energy?

Back

This process is called a change of state, and it often involves thermal energy.

Tags

NGSS.MS-PS1-4

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy of moving particles.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. All atoms of the same element have the same properties.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Tags

NGSS.MS-PS1-1

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is the smallest unit of an element?

Back

The smallest unit of an element is an atom.

Tags

NGSS.MS-PS1-1

Front

What is density?

Back

Density is the mass of a substance divided by its volume. It is a measure of how much matter is packed into a given space.

Front

How does the density of water change with temperature?

Back

The density of water decreases as it is heated and increases as it is cooled, with the maximum density occurring at 4°C.

Front

What happens to water when it freezes?

Back

When water freezes, it loses thermal energy and changes from a liquid to a solid state.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Front

What is condensation?

Back

Condensation is the process by which a gas loses thermal energy and changes into a liquid.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4