The starter and exit quiz of the lesson “Separating a soluble solid from a liquid”, from the unit “Separation techniques” (Year 7 Science) by Oak National Academy.
Free to use. Edit it, share it and hand it out to your students.
Oak National Academy
12 questions
What process happens when a solid can be observed to 'disappear' in a liquid to make a solution?
When a process is able to go backwards, or be "undone", it is said to be ___.
Match the word to the definition.
Put the following changes of state for ice/water in order starting from the one that requires the lowest temperature to the one that requires the highest temperature.
A volume of salt solution containing 0.5 g of salt was placed in a beaker and left for 2 weeks on the windowsill, after which only crystals of salt remained. How much salt would be present?
Sugar was added to water at 60℃ until no more sugar could dissolve. The solution was left to cool. What would you expect to see and why?
What is a solute?
Dissolving is a ___ process as solute can be added to the solvent and the solvent can then be evaporated to recover the solute.
Which definition best describes evaporation?
What happens to the size of crystals formed during crystallisation if the solvent evaporates slowly?
What is the name of the process that forms solid crystals from a saturated solution by evaporating the solvent?
Solvents evaporate into the air during crystallisation. How does heating affect this process?
