Year 7, unit 1
Mixing and separating
Name: .......................................................................... Class: .......................... Date: ......................
Lesson 1: Common mixtures
Worksheet:
Common mixtures
1. Following is a list of substances. Some are mixtures and others are pure
substances. Complete the table below by writing the names of the substances in
the appropriate column. If you are unsure write it in the unsure column for
checking later.
multigrain bread, soft drink, milk, muesli, salt water, oxygen, ink, aluminium foil,
butter, chocolate, ice cream, carbon dioxide, iron, cough medicine, filtered water
Mixture
Pure substance
Not sure
2. Compare your answers with others in the class and try to decide if the
substances in the ‘not sure’ column are mixtures or pure substances.
3. Write down the components for three of the substances you identified as mixtures.
4. The following substances are common household mixtures:
shampoo, tomato sauce, vegemite, cordial, washing powder, vinegar
Choose three of these and use the information on the side of the packet or bottle
to write down the three main components. (These will be the first three items
listed in the ingredients.)
5. Ice cream is a mixture. The ingredients in a typical recipe for making ice cream
are sugar, cream, milk, eggs and vanilla.
Predict what would happen to the mixture if:
a. the amount of milk was doubled?
b. the amount of sugar was halved?
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