Thermal Energy and Particle Motion

Match the following

• Particles are separate and free flowing

• Solid

• Particles are tightly packed

• Liquid

• Particles are loosely bonded and able to flow

• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles move the slowest in which phase?

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

What occurs when water vapor is cooled?

• Evaporation

• Condensation

• Freezing

• Sublimation

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Finish this diagram to show what molecules look like after heat is added.

Tags

NGSS.MS-PS1-4

What type of change occurs when water is heated?

Tags

NGSS.MS-PS1-4

Which of the following answers is this diagram showing (choose all the apply)

• This shows solid matter because the particles remain organized even when heated

• Thermal expansion of a solid

• Heated atoms lose kinetic energy

• Heated atoms gain kinetic energy

• The molecules are sliding past each other

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

When two objects reach a common temperature, this has been reached

When a substance is cooled, the density of its molecules

• Increases

• Decreases

• Stays the same

Tags

NGSS.MS-PS1-4

This diagram shows a substance that has undergone a change. What caused this change?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Match the following

• Melting

• Liquid to Solid

• Evaporation

• Solid to Gas

• Freezing

• Solid to Liquid

• Condensation

• Gas to Liquid

• Sublimation

• Liquid to Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4