The starter and exit quiz of the lesson “Separating pure salt from dirty rock salt”, from the unit “Separation techniques” (Year 7 Science) by Oak National Academy.
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Oak National Academy
12 questions
True or false? If a substance is described as 'soluble', then it means it can be dissolved in a solvent.
Which of the following can filtration be used for in the context of separating mixtures?
Which of the following properties is **not** a physical property?
Which property is most important when choosing a solvent to dissolve a substance?
Substances that do not dissolve in a liquid are described as ...
True or false? Crystallisation is a process that only occurs at high temperatures.
Put the following steps in the correct order to separate salt from rock salt.
The process of producing solid crystals by evaporating the solvent from a saturated solution is called ...
When a substance dissolves in a liquid it is described as ___ in that liquid.
Which of these statements best describes the purpose of creating a solution in the separation process of pure salt from rock salt?
True or false? Sand, being insoluble in water, can be completely removed from rock salt using crystallisation.
When dissolving salt into water, the solution will reach a point where no more salt can be dissolved at a given temperature. When no more solute can be dissolved we have made a ___ solution.
