Phase Change - Unit Test Study Guide - Amplify

A pull between two molecules that is always the same for a substance

• Kinetic Energy

• Molecular Attraction

• Molecule

• Mixture

Tags

NGSS.MS-PS2-5

to provide evidence that goes against a claim

• refute
• atom
• condensation
• evaporation
• freedom of movement

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

During a science experiment for the military, May and Dave found two liquids which could be used to make planes invisible. One is a fruit juice, and the other is a cleaning liquid. Both are at room temperature. They decided to test the liquids, even though war was inevitable. To test the liquids, they transferred the same amount of energy into both liquids, but only the cleaning liquid changed phase. How is the cleaning liquid different from the fruit juice?

The cleaning liquid has a . .

• weaker attraction between its molecules than the fruit juice. Its molecules now move in place.

• weaker attraction between its molecules than the fruit juice. Its molecules now move away from each other.

• stronger attraction between its molecules than the fruit juice. Its molecules now move away from each other.

• stronger attraction between its molecules than the fruit juice. Its molecules now move around each other.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A mirror fogs up due to water vapor cooling and forming a liquid.

What is the name of this process?

• Sublimation

• Deposition

• Freezing

• Condensation

Tags

NGSS.MS-ESS2-4

If you have a liquid that changes to a gas, explain it's freedom of movement in both phases.

• molecules move away from each other, then around each other
• molecules move in place, then around each other
• molecules move around each other, then away from each other
• molecules move around each other, then in place

Tags

NGSS.MS-PS1-4

In a science class, Jackson, Luna, and Aria are observing two liquids: a pink liquid and a green liquid. Both liquids are at room temperature. Luna transferred the same amount of energy into both liquids. She noticed that only the pink liquid changed phase. How is the pink liquid different from the green liquid?

The pink liquid has a . .

• weaker attraction between its molecules than the green liquid. Its molecules now move away from each other.

• weaker attraction between its molecules than the green liquid. Its molecules now move in place.

• stronger attraction between its molecules than the green liquid. Its molecules now move away from each other.

• stronger attraction between its molecules than the green liquid. Its molecules move around each other.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

a measure of how hot or cold something is

• temperature
• atom
• condensation
• evaporation
• freedom of movement

Mason, Elijah, and Anika are observing a block of ice melting into water and then evaporating into steam. They are discussing whether the attraction between the water molecules changes as it changes phases. Does the attraction in a substance change when it changes phases?

• Yes, attraction changes with phase change.

• No, a substances attraction will stay the same even if the phase changes.

Tags

NGSS.MS-PS1-4

The process of a liquid changing into a solid is known as...

• Melting

• Freezing

• Vaporization

• Condensation

Tags

NGSS.MS-PS1-4

17. Samuel, Henry, and Aria are playing with Sammy's superball, which is made of synthetic rubber, in the park. They are curious to know when the synthetic rubber molecules in the superball are moving.

The synthetic rubber molecules are . . .

• only moving when the superball is bouncing.

• only moving when the superball is in the toy box.

• always moving.

• never moving.