DO NOW Atoms, Temperature, Pressure, and Matter

What happens to the motion of particles in a substance when the temperature increases?

• The particles move slower.

• The particles move faster.

• The particles stop moving.

• The particles move in a circular path.

Tags

NGSS.MS-PS1-4

Which of the following best describes the effect of increased pressure on a gas?

• The gas particles move further apart.

• The gas particles move closer together.

• The gas particles stop moving.

• The gas particles change into a liquid.

What phase change occurs when a solid turns directly into a gas?

• Melting

• Freezing

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4

Which of the following is an element?

• Water

• Carbon

• Salt

• Air

Match each change in the spatial arrangement of particles with the correct process of cooling a liquid to a solid.

• boiling

• The particles move further apart.

• melting

• Particles move further apart when:

• substance changes from solid to liquid

• The particles become more orderly arranged.

• when heat is added to a substance

• The particles move faster.

• changes from liquid to a solid

• The particles become more randomly arranged.

Tags

NGSS.MS-PS1-4

How does decreasing the temperature affect the pressure of a gas in a closed container?

• The pressure increases.

• The pressure decreases.

• The pressure remains the same.

• The gas turns into a liquid.

(a)   is a compound.

• Oxygen
• Hydrogen
• Water
• Helium

Tags

NGSS.MS-PS1-1

(a)   is a mixture.

• Carbon dioxide
• Saltwater
• Gold
• Methane

What is the effect of increasing temperature on the phase change from liquid to gas?

• It slows down the phase change.

• It speeds up the phase change.

• It has no effect on the phase change.

• It causes the liquid to freeze.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which process describes the change from gas to liquid?

• Evaporation

• Sublimation

• Melting

• Condensation

Tags

NGSS.MS-PS1-4