Phase Change Exam

Phase Change Exam

Assessment

Flashcard

Science

6th - 8th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What happens to molecular movement when a substance melts?

Back

The molecular movement increases.

2.

FLASHCARD QUESTION

Front

Are the molecules in a solid object always moving?

Back

Yes, the molecules are always moving.

3.

FLASHCARD QUESTION

Front

What causes a phase change in a substance?

Back

A phase change occurs when energy is transferred in and out of a substance, causing molecular movement to speed up or slow down.

4.

FLASHCARD QUESTION

Front

Do molecules in both water in a glass and water in the ocean move?

Back

Yes, both have molecules that are moving.

5.

FLASHCARD QUESTION

Front

What happens to molecules when their kinetic energy decreases?

Back

They move slower.

6.

FLASHCARD QUESTION

Front

Define 'phase change'.

Back

A phase change is a transition of matter from one state to another, such as solid to liquid or liquid to gas.

7.

FLASHCARD QUESTION

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

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