Solids, liquids and gases
In a nutshell
There are three states of matter: solids, liquids and gases. Materials can be grouped into these categories.
States of matter
Matter is anything that can take up space and has a weight. There are three states of matter; solids, liquids and gases. Materials can be grouped in different states of matter depending on their properties.
state of matter | description | Examples | Image |
Solid | Objects with a fixed volume and shape. Materials are tough and can be easily held. | - Plastics
- Metals
- Sand
- Wood
- Glass
| |
Liquid | Materials that flow and can be poured. They have a fixed volume but not fixed shape. | | |
Gas | Free flowing materials that spread out very easily, without a fixed volume or shape. | - Oxygen
- Steam
- Helium
- Hydrogen
| |
Example
From the options below, select the materials that have a liquid state of matter.
'Brick, hydrogen, paper, tea, oxygen, water, silver, ice, air, lemonade.'
Liquid state of matter - Tea, water, lemonade