Science at key stage 3 (Year 7)

Unit 7H: Solutions

Prior learning

It is helpful if pupils:

have had experience of dissolving solids in water and know that not all are soluble
have separated mixtures of solids and liquids
know that not all liquids contain water
know that all materials are made up of very small particles

Sections in this unit

This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.


	1. How can we tell whether a liquid is a mixture?
	2. How much salt can we get from rock salt?
	3. What happens to the solute when a solution is made?
	4. How can we separate solvents from solutes?
	5. a. How can chromatography separate and identify substances in mixtures?
	6. b. How can chromatography separate and identify substances in mixtures?
	7. Checking progress
	8. Is there a limit to the amount of solid that will dissolve in a liquid?
	9. What else affects solubility?
	10. Reviewing work