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Science Quiz - Solids Liquids and Gases 01 (Questions)

Solids, liquids, and gases are the three main states of matter. Each state behaves differently because of the way its particles are arranged and move.

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Fascinating Fact:

Oobleck, a mix of cornflour and water, is a non-Newtonian fluid — it acts like a liquid when poured but like a solid when you punch it.

In KS3 Science, students explore the properties of solids, liquids, and gases. They learn how particles behave differently in each state and how changes in temperature affect them.

Key Terms

Solid: A state of matter where particles are packed closely together and keep a fixed shape.
Liquid: A state of matter where particles can move around each other, giving liquids a fixed volume but no fixed shape.
Gas: A state of matter where particles move freely and spread out to fill the space available.

Frequently Asked Questions (Click to see answers)

What happens to particles when a solid melts?

When a solid melts, its particles gain energy and move more freely. This breaks the fixed structure, turning the solid into a liquid.

What is the difference between evaporation and boiling?

Evaporation happens slowly at the surface of a liquid, while boiling happens quickly throughout the liquid at its boiling point.

Can gases be compressed?

Yes, gases can be compressed because their particles are far apart. This makes it easy to squeeze them into a smaller volume.

Try These Related Quizzes

1.

The state of matter which has very low density is .......

[ ]	Gas
[ ]	Liquid
[ ]	Solid
[ ]	Solution

2.

When a solid changes to a liquid, it .......

[ ]	Boils
[ ]	Condenses
[ ]	Freezes
[ ]	Melts

3.

If matter has energy taken away .......

[ ]	It contracts
[ ]	It expands
[ ]	It vaporises
[ ]	Nothing happens

4.

A balloon is filled with gas. Inside the balloon the gas particles .......

[ ]	Are avoiding each other
[ ]	Are moving slowly
[ ]	Are moving very quickly
[ ]	Are not moving

5.

Which is the most dense substance in this list?

[ ]	Aluminium
[ ]	Lead
[ ]	Oxygen
[ ]	Water

6.

Which will have the highest boiling point?

[ ]	Distilled water
[ ]	Pure water
[ ]	Salty water
[ ]	Tap water

7.

If you reduce the volume of a gas .......

[ ]	It expands
[ ]	It gets bigger
[ ]	The pressure increases
[ ]	The temperature falls

8.

When a gas changes to a liquid, it .......

[ ]	Boils
[ ]	Condenses
[ ]	Melts
[ ]	Sublimes

9.

When a smell spreads, particles move away from where they originated. This is called .......

[ ]	Condensation
[ ]	Diffusion
[ ]	Dispersion
[ ]	Evaporation

10.

Which of these statements about solids is true?

[ ]	They can be compressed easily
[ ]	They do not flow
[ ]	They have no definite volume
[ ]	They take the shape of their container

You can find more about this topic by visiting BBC Bitesize - Solids, liquids and gases

Science Quiz - Solids Liquids and Gases 01 (Answers)

1.

The state of matter which has very low density is .......

[x]	Gas
[ ]	Liquid
[ ]	Solid
[ ]	Solution

Hydrogen is the gas with lowest density

2.

When a solid changes to a liquid, it .......

[ ]	Boils
[ ]	Condenses
[ ]	Freezes
[x]	Melts

Ice melts at 0°C

3.

If matter has energy taken away .......

[x]	It contracts
[ ]	It expands
[ ]	It vaporises
[ ]	Nothing happens

As matter is cooled down, the particles move more slowly and therefore can pack closer together

4.

A balloon is filled with gas. Inside the balloon the gas particles .......

[ ]	Are avoiding each other
[ ]	Are moving slowly
[x]	Are moving very quickly
[ ]	Are not moving

The particles in a gas are moving a lot faster than those in a liquid or solid

5.

Which is the most dense substance in this list?

[ ]	Aluminium
[x]	Lead
[ ]	Oxygen
[ ]	Water

The most abundant metal in the Earth's crust is aluminium. Aluminium is a low density metal

6.

Which will have the highest boiling point?

[ ]	Distilled water
[ ]	Pure water
[x]	Salty water
[ ]	Tap water

Pure water boils at 100°C, adding salt makes it boil at a slightly higher temperature. The exact temperature depends on the amount of salt added

7.

If you reduce the volume of a gas .......

[ ]	It expands
[ ]	It gets bigger
[x]	The pressure increases
[ ]	The temperature falls

The gas particles are moving at the same speeds as before but there are more of them in a smaller space

8.

When a gas changes to a liquid, it .......

[ ]	Boils
[x]	Condenses
[ ]	Melts
[ ]	Sublimes

If a gas has energy taken away (is cooled) the particles slow down

9.

When a smell spreads, particles move away from where they originated. This is called .......

[ ]	Condensation
[x]	Diffusion
[ ]	Dispersion
[ ]	Evaporation

It takes a while for the smell to spread because the 'smelly' particles collide with particles of the air and travel around in random directions

10.

Which of these statements about solids is true?

[ ]	They can be compressed easily
[x]	They do not flow
[ ]	They have no definite volume
[ ]	They take the shape of their container

The particles are fixed in place so the shape of a solid object does not change unless something is done to it e.g. it is hit with a hammer