Contents
Key Stage 2
Meaning
Liquid is a state of matter that can be poured but cannot be squashed into a smaller space.
About Liquids
|
Liquids cannot be squashed into a smaller size. You can change their shape, but their size stays the same. |
Examples of liquid materials:
- Water
- Oil
Key Stage 3
Meaning
Liquid is a State of Matter where the particles are in a random arrangement touching but can slide past each other.
About Liquids
Liquids cannot be compressed into a smaller volume because the particles are already touching so they can't get any closer together. |
Key Stage 4
Meaning
Liquid is a State of Matter where the particles are in a random arrangement touching but can slide past each other.
About Liquids
- When a substance is in its liquid state it is always more dense than in its gaseous state and usually less dense than its solid state. Water is an exception to this due to how the molecules arrange themselves when it is frozen as ice, see Ice-Water Anomaly.
- A substance which is liquid at room temperature has a larger force of attraction between particles than a substance which is gas at room temperature but a weaker force of attraction than a substance which is solid at room temperature.
Particle Diagram | Particle Arrangement | Property |
Particles can slide past each other. | Liquids can be poured. | |
Liquids fit the shape of their container. | ||
Convection happens in solids. | ||
Particles and close together. | Liquids cannot be compressed. | |
Sound passes through liquids faster than gases. | ||
Thermal Conduction happens in liquids but not as well as in solids. |
References
AQA
- Liquid, pages 82-5, 100-1, GCSE Physics; Student Book, Collins, AQA
- Liquids, page 101, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
- Liquids, page 107, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Liquids, page 71, GCSE Physics, Hodder, AQA
- Liquids, page 97, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Liquids, pages 103-107, GCSE Chemistry, CGP, AQA
- Liquids, pages 121, 122, 193, 195, GCSE Combined Science; The Revision Guide, CGP, AQA
- Liquids, pages 164-5, 323, GCSE Combined Science Trilogy 1, Hodder, AQA
- Liquids, pages 36, 37, 107, GCSE Chemistry; The Revision Guide, CGP, AQA
- Liquids, pages 38-40, GCSE Physics; The Revision Guide, CGP, AQA
- Liquids, pages 6, 36-37, GCSE Chemistry; Third Edition, Oxford University Press, AQA
- Liquids, pages 77-79, 83, 164-165, GCSE Physics; Third Edition, Oxford University Press, AQA