Topical test revision

Here are some examples of liquids, except ….

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Which state of matter is ice is?

• gas

• liquid

• cold

• solid

What state of matter is smoke in?

• liquid

• solid

• gas

• vapour

When an ice cube melts, it changes from...

• a gas to a solid

• a liquid to a gas

• a solid to a gas

• a solid to a liquid

Which state of matter has a fixed shape and can be compressed when force is applied?

• particles

• solid

• liquid

• gas

The science teacher accidentally combined metal shavings with sand, what method can be used to separate the mixture?

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If you had a mixture of seeds and sand and needed to separate them.

What method would work best?

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True or False: A mixture must have at least two different materials.

• True

• False

True or False: The best way to separate rocks and sand is to use a sieve. This will allow the sand to fall through and the rocks to stay.

• True

• False

In a fair test you should...

• only change one factor

• change all the factors 

• change none of the factors

• keep all the factors the same