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Particle Theory/Heat

Science

7th Grade

Used 174+ times

Particle Theory/Heat
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28 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The more energy particles have...

the faster they move.

the farther apart they tend to be.

the hotter they are.

All of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

100% pure orange juice is an example of a homogeneous mixture.

True

False

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does a solvent (water) dissolve a solute (sugar) faster when it is hot?

There is more space between the particles of the solvent.

The solute particles get "bumped" more by the solvent.

The solvent particles are moving faster.

All of the above.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the BEST answer to why metal is hard?

It is a solid.

The particles are very attracted to each other so they are much closer together (denser).

It is metal and metals are hard.

It is a conductor.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a solute (sugar) dissolves in a solvent (water), where do the solute particles go?

In between the solvent particles.

The solute combines with the solvent particles.

The solute disappears.

It floats to the bottom.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The substance in a mixture that DISSOLVES that there tends to be less of is called...

the solute.

the solvent.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does a solute (sugar, salt, etc.) dissolve into a solvent (water, ethanol, etc.)

They fit together like puzzle pieces.

The solute is more attracted to the solvent than it is to itself.

Because the particles melt.

The particles join together.

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