Density of Solids, Liquids & Gases HyperLearning
Science: KS3, topic 2.8.4
Density of Solids, Liquids & Gases
The density of substances in different states is different. Density can be calculated by Mass ÷ Volume.
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Density of solids
- Solid particles are arranged in a fixed position and in layers.
- Solids generally have a high density.
- To measure the density of a solid you need to work out its mass using a top pan balance.
- If it is a regular shaped object to work out the volume you need to do length x width x height
- If the object is irregular then you can use a displacement or eureka can to measure its volume.
Density of liquids
- Liquid particles are free to move around and are not arranged in layers or a fixed position.
- Liquid densities are usually less than when they are in solid form.
- Water is unusual because its liquid density is more than when it is a solid.
- You can measure the volume of a liquid using a measuring cylinder.
- You can use a top pan balance to measure the liquids mass.
- (The mass of the liquid + measuring cylinder) – the mass of the measuring cylinder.
Density of gases
- Gases have low densities as the particles of the gases are far apart each other
Test yourself on Density of Solids, Liquids & Gases HyperLearning
What is unusual about water?
How are gas particles arranged compared to each other?
Choose the true statement in each pair