Phase Changes of Matter

Front

What is deposition?

Back

Deposition is the phase change in which gas changes directly into a solid without passing through the liquid phase, such as water vapor turning into frost.

Tags

NGSS.MS-PS1-4

Front

What principle states that matter cannot be created or destroyed?

Back

The principle of conservation of mass states that matter cannot be created or destroyed in a chemical reaction or physical change.

Tags

NGSS.MS-PS1-5

Front

What is condensation?

Back

Condensation is the process by which a gas changes into a liquid, often seen when water vapor cools and forms droplets on a cold surface.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What causes pressure in a gas?

Back

Pressure in a gas is caused by particles colliding with the walls of their container, resulting in a force exerted over an area.

Front

What is freezing?

Back

Freezing is the phase change where a liquid turns into a solid as heat is removed, such as water turning into ice.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What happens during evaporation?

Back

Evaporation is the process where a liquid changes into a gas, usually occurring at the surface of the liquid when heat is added.

Tags

NGSS.MS-PS1-4

Front

Define melting.

Back

Melting is the phase change where a solid turns into a liquid when heat is added, such as ice melting into water.

Tags

NGSS.MS-PS1-4

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Front

What is the role of heat in phase changes?

Back

Heat is energy that can cause matter to change from one phase to another, such as adding heat to ice to melt it into water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is sublimation?

Back

Sublimation is the phase change where a solid changes directly into a gas without becoming a liquid, such as dry ice turning into carbon dioxide gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4