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Practice - Materials and Their Properties - 04

Hello there KS2 students! We have a fantastic science quiz for you today. As you journey through the realm of mixtures and solutions, and explore the fascinating world of state changes, we challenge you to put your knowledge to the test! Remember, there are no wrong answers, just tons of learning opportunities. So, buckle up and embark on the fun-filled science ride!
1.
What is a solution?
A solid mixed with a liquid
A liquid mixed with a gas
A mixture in which substances are evenly spread
A liquid that changes state to a solid
A solution is a type of mixture in which all the substances are evenly distributed.
2.
If you mix sand and water, what kind of mixture do you have?
Solution
Suspension
Solute
Solvent
Sand and water form a suspension. In a suspension, small particles of a substance are dispersed throughout a gas or liquid.
3.
What happens when a solid substance is heated up?
It turns into a gas
It turns into a liquid
It disappears
Nothing happens
When a solid substance is heated, it melts and turns into a liquid. This is known as the process of melting.
4.
Which of these substances is soluble in water?
Plastic
Iron
Sand
Salt
Salt is soluble in water, it dissolves when mixed in water.
5.
What happens when a gas is cooled down?
It condenses into a solid
It condenses into a liquid
It disappears
Nothing happens
When a gas is cooled down, it condenses and turns into a liquid. This is known as the process of condensation.
6.
What is the name of the process when a gas changes directly into a solid?
Deposition
Sublimation
Evaporation
Distillation
Deposition, or desublimation, is the process when a gas changes directly into a solid without passing through the liquid stage.
7.
What is the process of a liquid turning into a solid called?
Condensation
Freezing
Melting
Sublimation
When a liquid turns into a solid, it's called freezing.
8.
What does not dissolve in water?
Salt
Sugar
Oil
Baking powder
Oil is immiscible. It does not mix with water, so it doesn't dissolve in it.
9.
When you boil a kettle, what state does the water change from and to?
From solid to gas
From liquid to gas
From gas to liquid
From liquid to solid
When you boil a kettle, the water changes from a liquid to a gas (steam). This is called evaporation.
10.
When a solid changes to become a liquid, the process is called?
Condensation
Evaporation
Melting
Freezing
The process of a solid changing state to become a liquid due to heating is known as melting.
Author:  Graeme Haw

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