Phase Change #3

How would you describe the way molecules move when the molecules are liquid?

• the molecules are moving in place.

• the molecules are moving around each other.

• the molecules are moving away from each other.

• the molecules are not moving

How would you describe the way molecules move when the molecules are solid?

• the molecules are moving in place.

• the molecules are moving around each other.

• the molecules are moving away from each other.

• the molecules are not moving

How would you describe the way molecules move when the molecules are gas?

• the molecules are moving in place.

• the molecules are moving around each other.

• the molecules are moving away from each other.

• the molecules are not moving

Tags

NGSS.MS-PS1-4

What happens to molecules when energy transfers into a substance?

• The substance's molecules will move faster.

• The substances's molecules will move slower.

• The substance's molecules will continue to move at the same speed.

• The substance's molecules will stop moving.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happens to molecules when energy transfers out of a substance?

• The substance's molecules will move faster.

• The substances's molecules will move slower.

• The substance's molecules will continue to move at the same speed.

• The substance's molecules will stop moving.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to molecules when the temperature drops or lowers?

• The molecules get closer together

• The molecules start moving faster.

• The molecules stop moving.

• The molecules become smaller.

Tags

NGSS.MS-PS1-4

What must happen for molecules to move slower?

• Kinetic energy is not changing. Temperature decreases.

• Kinetic energy and temperature depend on the molecules.

• Kinetic energy is decreasing and temperature is decreasing.

• Kinetic energy is decreasing and temperature is increasing.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happens to molecules when their kinetic energy increases?

• They move slower.

• They move faster.

• They get heavier

• It depends on the type of molecules

Tags

NGSS.MS-PS1-4

Molecules are always moving no matter what phase they are in: solid, liquid, gas.

• True

• False

Tags

NGSS.MS-PS1-4

What would be a reason for a phase change to occur in one substance and not another substance even if both substances began at the same phase and were transferred the same amount of energy?

• The molecular attraction of one of the substances was weaker than the other substance causing phase change to occur.

• The molecular attraction of both substances were the same causing phase change to occur in one of them.

• The molecular attraction of one of the substances was stronger than the other substance causing phase change to occur.

• Phase change can not occur in one substance and not the other because they both started in the same phase.

Tags

NGSS.MS-PS1-4