States of Matter Topic Guide

Everything around us exists as one of the states of matter; solid, liquid and gas. Matter can change its state when it is heated or cooled.

When water is frozen into ice, it becomes a solid. At room temperature it is a liquid. When you boil a kettle, you can see water vapour escape as a gas.

Teach your children about the States of Matter using our handy topic guide!

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Teaching Ideas | Resources | Facts | Videos | Books | Links

Teaching Ideas



The Solids, Liquids and Gases Pack

Solids, Liquids and Gases Facts

  • Matter is everything around us. It is the “stuff” the world is made of.
  • There are three main states of matter; solids, liquids and gases.
  • Solids have a fixed shape.
  • Liquids can flow and take the shape of the container they are in.
  • Gases spread out in space.


States of Matter – Experiments

This video shows two simple experiments that children could try.

Running time: 3:41

What is a Gas?

A lively video that gives more detail about gases.

Running time: 4:12

The Three States of Matter Song

A catchy song to help you learn facts about the states of matter.

Running time: 1:39

Solid, Liquid, Gas

A lively overview of the three states.

Running time: 0:56


Bartholomew and the Oobleck

When the king gets tired of the weather, his magicians make sticky oobleck rain from the sky.

Charlie and the Chocolate Factory

This classic favourite is a perfect read for learning about states of matter (especially chocolate!).


An adventure story about science. Itchingham Lofte (Itch) discovers a new element, but someone is after it…

States of Matter

This book sums up the key points of the topic, with a joke or two along the way!

Making with States of Matter

This practical book is full of projects changing the state of matter that are inspired by scientists, artists and inventors.

Solids, Liquids and Gases: Let's Investigate

Try some of the experiments in this book.

Are you teaching your children about other topics? Explore our full collection of guides!

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