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Science Quiz - Solids, Liquids and Gases 02 (Questions)

Matter can exist in different forms. In KS2 Science, pupils explore solids, liquids, and gases, learning how heating and cooling change one state into another.

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Fascinating Fact:

Scientists have discovered strange states of matter beyond solids, liquids, and gases, such as plasma and Bose-Einstein condensates.

In KS2 Science, pupils learn that the three main states of matter are solids, liquids, and gases. These states can change when energy is added or removed, like ice melting or water boiling.

Key Terms

Evaporation: The process where a liquid turns into a gas, often when heated.
Condensation: The process where a gas cools down and changes back into a liquid.
Plasma: A state of matter made of charged particles, found in stars and lightning.

Frequently Asked Questions (Click to see answers)

What are the three main states of matter in KS2 Science?

The three main states of matter are solids, liquids, and gases. They differ in particle movement and arrangement.

Are there more states of matter beyond solid, liquid, and gas?

Yes, scientists have discovered other states like plasma and Bose-Einstein condensates, but these are not part of KS2 Science.

How do substances change between states of matter?

Substances change state when heated or cooled, for example melting ice to water or freezing water into ice.

Try These Related Quizzes

1.

What is solid water called?

[ ]	Magma
[ ]	Dry ice
[ ]	Ice
[ ]	Water vapour

2.

What is water called when it is a gas?

[ ]	Helium
[ ]	Carbon dioxide
[ ]	Nitrogen
[ ]	Water vapour

3.

Can sugar become a liquid?

[ ]	Yes, when it is heated to a very high temperature
[ ]	Yes, when it is heated to 100° Celsius
[ ]	Sometimes, depending on what type of sugar it is
[ ]	Sugar can never become liquid

4.

When a material is heated, what happens to its particles?

[ ]	They lose energy and become more strongly attached (attracted) to other particles
[ ]	They gain energy and become less strongly attached (attracted) to other particles
[ ]	They begin to stick together
[ ]	They stop moving

5.

Which of the following describes what happens when water evaporates?

[ ]	Gravity causes the water to run downhill and disappear
[ ]	The water gradually becomes solid and these solids break away from the liquid
[ ]	The water doesn't exist any longer
[ ]	Particles gain enough energy to break free from the liquid's surface

6.

In cooler temperatures, how do the particles of any material move?

[ ]	More slowly
[ ]	More quickly
[ ]	Alternately slowly and quickly
[ ]	Particles never change how they move

7.

In warmer temperatures, how do particles of any material move?

[ ]	More slowly
[ ]	More quickly
[ ]	Alternately slowly and quickly
[ ]	Particles never change how they move

8.

Although air is made up of several gases, the two main ones are nitrogen and which other?

[ ]	Helium
[ ]	Oxygen
[ ]	Carbon dioxide
[ ]	Methane

9.

In order to smell, particles from the object must enter your nose. In which state of matter are these particles?

[ ]	Solid
[ ]	Liquid
[ ]	Gas
[ ]	Liquid or gas

10.

A sweet fizzy drink contains what?

[ ]	Solid only
[ ]	Liquid only
[ ]	Gas only
[ ]	Solid, liquid and gas

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

Science Quiz - Solids, Liquids and Gases 02 (Answers)

1.

What is solid water called?

[ ]	Magma
[ ]	Dry ice
[x]	Ice
[ ]	Water vapour

When water is placed in the freezer, it becomes a solid - ice

2.

What is water called when it is a gas?

[ ]	Helium
[ ]	Carbon dioxide
[ ]	Nitrogen
[x]	Water vapour

Water vapour is also called steam. Steam is invisible - what you see rising from a kettle or a pan are water droplets in the air

3.

Can sugar become a liquid?

[x]	Yes, when it is heated to a very high temperature
[ ]	Yes, when it is heated to 100° Celsius
[ ]	Sometimes, depending on what type of sugar it is
[ ]	Sugar can never become liquid

Sugar becomes liquid at around 186° C - heating sugars to such high temperatures is how sweets are made

4.

When a material is heated, what happens to its particles?

[ ]	They lose energy and become more strongly attached (attracted) to other particles
[x]	They gain energy and become less strongly attached (attracted) to other particles
[ ]	They begin to stick together
[ ]	They stop moving

Heat gives energy to the particles and makes them vibrate or move

5.

Which of the following describes what happens when water evaporates?

[ ]	Gravity causes the water to run downhill and disappear
[ ]	The water gradually becomes solid and these solids break away from the liquid
[ ]	The water doesn't exist any longer
[x]	Particles gain enough energy to break free from the liquid's surface

If a particle gets enough energy it leaves the liquid. Particles like this form gases

6.

In cooler temperatures, how do the particles of any material move?

[x]	More slowly
[ ]	More quickly
[ ]	Alternately slowly and quickly
[ ]	Particles never change how they move

Cooler particles have less energy

7.

In warmer temperatures, how do particles of any material move?

[ ]	More slowly
[x]	More quickly
[ ]	Alternately slowly and quickly
[ ]	Particles never change how they move

Warmer particles have more energy

8.

Although air is made up of several gases, the two main ones are nitrogen and which other?

[ ]	Helium
[x]	Oxygen
[ ]	Carbon dioxide
[ ]	Methane

Animals - including people - need oxygen to breathe!

9.

In order to smell, particles from the object must enter your nose. In which state of matter are these particles?

[ ]	Solid
[ ]	Liquid
[x]	Gas
[ ]	Liquid or gas

You breathe the gas in through your nose and detect any smell which pass through

10.

A sweet fizzy drink contains what?

[ ]	Solid only
[ ]	Liquid only
[ ]	Gas only
[x]	Solid, liquid and gas

Sweetened fizzy drinks contain solid (sugar), liquid (water) and gas (carbon dioxide)