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Investigate the Properties of Gases

In this worksheet, students will test their understanding of the material properties of gases and how, in science, we classify a material as a gas.

'Investigate the Properties of Gases' worksheet

Key stage:  KS 2

Year:  Year 4 Science worksheets

Curriculum topic:   States of Matter

Curriculum subtopic:   Solids, Liquids and Gases

Difficulty level:  

Worksheet Overview

Imagine that you've discovered a new material.

You need to share your discovery with other scientists all around the world!

 

What tests can you carry out to classify your new material as a solid, liquid or gas?

Just what makes a gas, a gas?

 

Scientist

 

Solids have a definite shape and volume, liquids have a definite volume but take on the shape of their container, but what about gases?

 

Gas cylinder

 

The particles a gas is made of are so spread out that they fill whatever space is given to them, meaning that you can detect the smell of baking biscuits all over the house, for example!

 

Biscuits

 

That also means that gases can be compressed (squashed) a little bit, as their particles are so spread out.

 

Weirdly, gases can flow, just like liquids!

In a burning house, we are encouraged to try to escape by staying low down to the floor.

The heated smoky air flows upwards, so air nearer the floor is more breathable.

 

Chip pan fire

 

So, let's go back to that first question: "What makes a gas, a gas?" 

 

Let's explore what this means.

 

girl with magnifying glass

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