Grade 8 Amplify Phase Change 5.0

A _____ keeps its shape because its molecules only move in place, not around each other.

A _____ can flow because its molecules move around, not away from each other.

A _____ does not have a visible shape because its molecules can move away from each other.

Tags

NGSS.MS-PS1-4

A phase change is when the molecules that make up a substance experience a change to their _____. This phase change involves a macroscale change in appearance.

Tags

NGSS.MS-PS1-4

A change that can be observed at the _____ can be explained by a change at the _____, which cannot be observed with the naked eye.

• molecular scale, macroscale

• macaroni scale, molecule scale

• macroscale, molecular scale

• molehill scale, macroscale

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

When energy is transferred to or from a substance, it can change the molecules’ _____.

• Friday movie goers

• freakish morning star

• freedom of movement

• friendly morning people

Tags

NGSS.MS-PS1-4

_____ is a measure of the average kinetic energy of the molecules of a substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Transferring energy to a substance increases the _____ of that substance’s molecules. Transferring energy from a substance decreases the _____ of that substance’s molecules.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Whether or not a _____ occurs is determined by the interaction between the kinetic energy of the molecules and the attraction pulling the molecules together.

Tags

NGSS.MS-PS1-4

The _____ of a substance never changes.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5