Pure Substances, Mixtures and Separation (Grade 7)
Free printable Grade 7 science worksheet on pure substances, mixtures and separating techniques including filtration, evaporation, distillation and chromatography.
Grade 7 · Science worksheet
Name
Date
Science
Pure Substances, Mixtures and Separation
Classify each substance and name the separation technique that suits each job.
- 1.In a salt solution, what is the water called?
- 2.Which technique separates the different coloured dyes in a felt-tip pen ink?
- 3.Do the substances in a mixture keep their own properties?
- a) yes
- b) no
- 4.Distillation separates liquids using a difference in which physical property?
- 5.In filtration, what is the liquid that passes through the filter paper called?
- 6.In filtration, what is the solid left behind in the filter paper called?
- 7.In a salt solution, what is the salt called?
- 8.Is the air around you a pure substance or a mixture?
- a) pure substance
- b) mixture
- 9.Which piece of equipment separates two liquids that do not mix, such as oil and water?
- 10.Is distilled water a pure substance or a mixture?
- a) pure substance
- b) mixture
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