Phase Changes and Properties of Matter

What is the name of the phase change from solid to liquid?

• Freezing

• Melting

• Vaporization

• Condensation

Tags

NGSS.MS-PS1-4

What is the phase change from liquid to gas called?

• Vaporization

• Boiling

• Condensation

• Evaporation

Tags

NGSS.MS-PS1-4

What is the process of changing from a gas to a liquid?

• Freezing

• Melting

• Vaporization

• Condensation

Tags

NGSS.MS-PS1-4

Which phase change involves changing from a solid to a gas?

• Vaporization

• Sublimation

• Deposition

• Condensation

A ​ (a)   is when the molecules that make up a substance experience a change to their freedom of movement. This involves a ​ (b)   -scale change in appearance.

• phase change

• chemical reaction

• macro

• micro

• molecular

Answer explanation

A phase change is not a chemical reaction. Chemical reactions require bonds to break and atoms to rearrange. Phase changes only require a change to the freedom of movement of a substance's molecules.

When a phase change happens, it can be seen with the naked human eye, which means that there is a macro-scale (large) change in appearance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Study the diagram below. The material begins to condense at point:

• 1

• 2

• 3

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

____________________ occurs when a liquid changes to a gas below its surface as well as at the surface.​ (a)  

• Boiling

• Simmering

• Cooking

• Baking

Tags

NGSS.MS-PS3-4

A scientist places a substance in a sealed container and observes its behavior as she gradually increases the temperature. Initially, the substance has a definite volume but takes the shape of its container. As the temperature rises, which phase of matter is the substance most likely in?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

Which phase change involves going from a gas to a solid?

• Melting

• Freezing

• Deposition

• Sublimation

Which of the following is a characteristic of a gas?

• Definite volume

• No definite shape or volume

• No definite shape but definite volume

• Definite shape

Tags

NGSS.MS-PS1-4