Open SciEd: Chemical Reactions & Matter (Lessons 1 to 4)

Open SciEd: Chemical Reactions & Matter (Lessons 1 to 4)

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is matter?

Back

Anything with mass and volume.

2.

FLASHCARD QUESTION

Front

What is a closed system?

Back

A system that does not allow transfer of matter in or out, but allows transfer of energy.

3.

FLASHCARD QUESTION

Front

What does mass measure?

Back

The amount of matter in a substance.

4.

FLASHCARD QUESTION

Front

What happens to less dense gases and liquids when surrounded by denser gases or liquids?

Back

They float upward.

5.

FLASHCARD QUESTION

Front

What is the melting point?

Back

The temperature at which a substance changes state from solid to liquid.

6.

FLASHCARD QUESTION

Front

What is an open system?

Back

A system that allows the transfer of both matter and energy.

7.

FLASHCARD QUESTION

Front

What is volume?

Back

The amount of space a substance occupies.

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