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Solids and Liquids

In this worksheet, students will be looking at the properties of solids and liquids.

'Solids and Liquids' worksheet

Key stage:  KS 2

Curriculum topic:   States of Matter

Curriculum subtopic:   Solids, Liquids and Gases

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Everything around you is made up of tiny particles - did you know that?  They are the atoms and molecules you may have heard of before.

 

Each individual particle is far too small to see. In some materials the particles are very tightly packed together and can't move around, so the material keeps its shape. Materials like this are called solids.

 

In other materials the particles are not so tightly packed and are able to move around each other. This means that the material can change shape to fit whatever container it is put in. Materials like this are called liquids. It is possible for solids to change into liquids and for liquids to change back into solids.

 

Block of ice

 

In this worksheet  you can try to answer some questions about solids and liquids and test what you know about these two forms of matter.

What is the word that describes what happens when a solid changes in to a liquid?

solidifying

vanishing

melting

dissolving

What is the word that describes what happens when a liquid turns into a solid?

freezing

scorching

steaming

moulding

Which of these are properties of a liquid?

 

Liquid pouring

 

Tick all the ones you agree with.

can be poured

always keeps the same shape

can be cut into smaller pieces

takes the shape of its container

expands to fill its container

has a level surface

Which of these are properties of a solid?

 

Bricks

 

Tick all the ones you agree with.

it is hard

it forms droplets

it keeps the same shape

it can be broken into smaller pieces

it can be shaped

it can be poured

True or false: once a solid has melted and turned into a liquid it can never become solid again.

true

false

What do you have to do to change a solid into a liquid?

dissolve it

crush it into very small pieces

heat it

cool it

Do all substances freeze at the same temperature?

yes

no

  • Question 1

What is the word that describes what happens when a solid changes in to a liquid?

CORRECT ANSWER
melting
EDDIE SAYS
Solids have to melt before turning into liquids, like holding some chocolate in your hand - the warmth of your hand will start to melt the chocolate and you end up with a sticky mess!
  • Question 2

What is the word that describes what happens when a liquid turns into a solid?

CORRECT ANSWER
freezing
EDDIE SAYS
When liquids freeze, they turn into solids. For example, when you put water in the freezer it turns into ice.
  • Question 3

Which of these are properties of a liquid?

 

Liquid pouring

 

Tick all the ones you agree with.

CORRECT ANSWER
can be poured
takes the shape of its container
has a level surface
EDDIE SAYS
A liquid can be poured from one container into another and will take the shape of its container, but it will not expand to fill the container. After it has been poured and has settled a liquid has a level surface.
  • Question 4

Which of these are properties of a solid?

 

Bricks

 

Tick all the ones you agree with.

CORRECT ANSWER
it keeps the same shape
it can be broken into smaller pieces
it can be shaped
EDDIE SAYS
Some solids, such as rocks are hard and brittle and can be broken up, but all solids keep their shape unless acted on by a force, and no solid forms droplets or can be poured like a liquid. In the same manner, solids, such as metals can be made into different shapes, but only with a force acting on them.
  • Question 5

True or false: once a solid has melted and turned into a liquid it can never become solid again.

CORRECT ANSWER
false
EDDIE SAYS
Melting is a reversible process. It is possible to turn a liquid back into a solid by freezing it again. For example, if you take the water from a melted ice cube and put it back into the freezer it will become ice again.
  • Question 6

What do you have to do to change a solid into a liquid?

CORRECT ANSWER
heat it
EDDIE SAYS
Dissolving something, for example dissolving salt in water, doesn't change it into a liquid. It breaks it down into pieces that are too small to see and spread out in the water.
  • Question 7

Do all substances freeze at the same temperature?

CORRECT ANSWER
no
EDDIE SAYS
If everything became solid at the same temperature everything around us would be solid, or liquid, at the same time. Looking around you, you can see this isn't true, so different things must freeze at different temperatures.
---- OR ----

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