Phase Change

Phase Change

Assessment

Flashcard

Science

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What happens to the molecules of a substance when energy is added and it undergoes a phase change?

Back

The molecules will move faster, and the substance may change from solid to liquid or liquid to gas.

2.

FLASHCARD QUESTION

Front

What is the effect of strong molecular attraction on the phase of a substance?

Back

Strong molecular attraction can cause a substance to remain in a solid state, as the molecules move in place.

3.

FLASHCARD QUESTION

Front

Describe the movement of water molecules in a liquid state compared to a solid state.

Back

In a liquid state, water molecules move around each other, while in a solid state, they move in place.

4.

FLASHCARD QUESTION

Front

What is the relationship between energy and phase change in substances?

Back

Adding energy can cause a substance to change phase, while removing energy can cause it to revert to a previous phase.

5.

FLASHCARD QUESTION

Front

How does temperature affect the phase of a substance?

Back

Temperature changes can increase or decrease the energy of molecules, leading to phase changes between solid, liquid, and gas.

6.

FLASHCARD QUESTION

Front

What is the significance of molecular energy in determining the phase of a substance?

Back

The amount of energy in the molecules determines their movement and arrangement, influencing whether the substance is a solid, liquid, or gas.

7.

FLASHCARD QUESTION

Front

What happens to a liquid when energy is removed from it?

Back

When energy is removed from a liquid, it may change phase to a solid as the molecular movement slows down.

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