It consists of just a type of atom like hydrogen (H) or just a type of molecules like water (H2O).
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25
What are the two types of mixtures? Describe them with examples.
Homogeneous mixtures: We canât distinguish the different components that make up the mixture. Heterogeneous mixtures: We can distinguish the components.
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25
What is condensation? Give an example.
When a gas changes to a liquid.
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What is matter? What is it made of?
Matter is everything around us that has a mass and occupies a space. It is made up of tiny particles called atoms.
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20
Describe solids.
Atoms are very close one to each other so they tend to stay in the same place. They have just a little energy.
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25
What is evaporation? Give an example.
when a liquid changes to a gas
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What is melting? Give an example.
when a solid changes to a liquid.
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20
Describe gases
Atoms have a lot of space between them that is why they move a lot and they completely fill a container. They have a lot of energy
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15
Why do we use magnetism?
We use it to separate components in a mixture that display magnetic and non-magnetic properties. E.g. sand and coins
