States of Matter and Phase Changes

Front

What is the main reason ice floats on water?

Back

Ice is less dense than water.

Front

How does particle motion compare among the states of matter?

Back

Gases > liquids > solids.

Tags

NGSS.MS-PS1-4

Front

What can be said about the energy of liquid particles compared to solid particles?

Back

Liquid particles have more energy than solid particles.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Which process involves the removal of thermal energy?

Back

Freezing.

Tags

NGSS.MS-PS1-4

Front

What happens to particles when a solid changes to a liquid?

Back

Particles move farther apart and speed up.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Define 'solid' in terms of particle arrangement and motion.

Back

In a solid, particles are closely packed in a fixed position and vibrate in place.

Front

What is 'melting'?

Back

Melting is the process where a solid turns into a liquid by gaining thermal energy.

Tags

NGSS.MS-PS1-4

Front

Explain 'evaporation'.

Back

Evaporation is the process where liquid turns into gas at the surface, usually due to heat.

Tags

NGSS.MS-PS1-4

Front

What occurs during 'condensation'?

Back

Condensation is the process where gas turns into liquid as it loses thermal energy.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Front

Define 'sublimation'.

Back

Sublimation is the process where a solid turns directly into gas without becoming a liquid.

Tags

NGSS.MS-PS1-4