Phase Changes Lesson

Which phase change requires the most energy input?

• Melting

• Freezing

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4

What usually happens to a solid when its particles gain enough thermal energy?

• The solid begins to melt

• The solid begins to condense

• The solid begins to evaporate

• The solid begins to sublimate

Tags

NGSS.MS-PS1-4

Substances that sublimate....

• change from a solid to a gas

• do not enter a liquid state at all

• do not melt when they gain thermal energy

• all of these are true

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The boiling point of a substance is the point at which the substance changes from a

• liquid to a gas

• solid to a liquid

• gas to a solid

Tags

NGSS.MS-PS1-4

What usually happens to a liquid when its particles gain enough energy to break away?

• The liquid begins to cool

• The liquid begins to condense

• The liquid begins to evaporate

• The liquid begins to sublimate

Tags

NGSS.MS-PS1-4

The state of matter of a substance is determined by

• the arrangement and motion of its particles

• the number of particles

• the shape of the container holding the substance

• the size of the container holding the particles

Tags

NGSS.MS-PS1-4

Identify the correct state of matter in the image

• liquid

• plasma

• gas

• solid

Tags

NGSS.MS-PS1-4

Identify the state of matter in the image.

• liquid

• plasma

• gas

• solid

Tags

NGSS.MS-PS1-4

BONUS: If you increase the pressure, what state of matter will this substance change to first?

• gas

• liquid

• stays the same

• solid

Tags

NGSS.MS-PS1-4

Identify the state of matter in the image

• liquid

• plasma

• gas

• solid

Tags

NGSS.MS-PS1-4