Which substances are insoluble (do not dissolve) in water?
Separating an insoluble solid from a liquid
Multiple choice
Year 7
2
No diagram
A __________ is a material that contains two or more different substances, which can be physically separated.
Separating an insoluble solid from a liquid
Short answer
Year 7
1
No diagram
What mixture is formed when a substance dissolves in a liquid?
Separating an insoluble solid from a liquid
Multiple choice
Year 7
1
No diagram
Match the following words to their meaning.
Separating an insoluble solid from a liquid
Matching
Year 7
4
No diagram
Iron is a __________ material as it is attracted to magnets.
Separating an insoluble solid from a liquid
Short answer
Year 7
1
No diagram
Which of the following are mixtures?
Separating an insoluble solid from a liquid
Multiple choice
Year 7
2
No diagram
Some insoluble solids are more __________ than a liquid and this property causes them to sink.
Separating an insoluble solid from a liquid
Short answer
Year 7
1
No diagram
What is the name of the two separation techniques that involve mixtures being poured?
Separating an insoluble solid from a liquid
Multiple choice
Year 7
2
No diagram
Match the words with their definitions.
Separating an insoluble solid from a liquid
Matching
Year 7
4
No diagram
Order the followings steps to show how to set up the equipment to perform the filtration of an insoluble solid in a liquid.
Separating an insoluble solid from a liquid
Ordering
Year 7
1
No diagram
Filtration is used when making a cup of tea from a teabag. Match up the scientific word to the part involved in making the cup of tea.
Separating an insoluble solid from a liquid
Matching
Year 7
4
No diagram
Look at the image of filtering equipment. Choose the problems that could occur when filtering.
Separating an insoluble solid from a liquid
Multiple choice
Year 7
3
Diagram
What process happens when a solid can be observed to 'disappear' in a liquid to make a solution?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
When a process is able to go backwards, or be "undone", it is said to be __________.
Separating a soluble solid from a liquid
Short answer
Year 7
1
No diagram
Match the word to the definition.
Separating a soluble solid from a liquid
Matching
Year 7
4
No diagram
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.
Separating a soluble solid from a liquid
Ordering
Year 7
1
No diagram
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?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
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?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
What is a solute?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
Dissolving is a __________ process as solute can be added to the solvent and the solvent can then be evaporated to recover the solute.
Separating a soluble solid from a liquid
Short answer
Year 7
1
No diagram
Which definition best describes evaporation?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
What happens to the size of crystals formed during crystallisation if the solvent evaporates slowly?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
What is the name of the process that forms solid crystals from a saturated solution by evaporating the solvent?
Separating a soluble solid from a liquid
Short answer
Year 7
1
No diagram
Solvents evaporate into the air during crystallisation. How does heating affect this process?
Separating a soluble solid from a liquid
Multiple choice
Year 7
1
No diagram
True or false? If a substance is described as 'soluble', then it means it can be dissolved in a solvent.
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
Which of the following can filtration be used for in the context of separating mixtures?
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
Which of the following properties is not a physical property?
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
Which property is most important when choosing a solvent to dissolve a substance?
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
Substances that do not dissolve in a liquid are described as ...
Separating pure salt from dirty rock salt
Short answer
Year 7
1
No diagram
True or false? Crystallisation is a process that only occurs at high temperatures.
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
Put the following steps in the correct order to separate salt from rock salt.
Separating pure salt from dirty rock salt
Ordering
Year 7
1
No diagram
The process of producing solid crystals by evaporating the solvent from a saturated solution is called ...
Separating pure salt from dirty rock salt
Short answer
Year 7
1
No diagram
When a substance dissolves in a liquid it is described as __________ in that liquid.
Separating pure salt from dirty rock salt
Short answer
Year 7
1
No diagram
Which of these statements best describes the purpose of creating a solution in the separation process of pure salt from rock salt?
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
True or false? Sand, being insoluble in water, can be completely removed from rock salt using crystallisation.
Separating pure salt from dirty rock salt
Multiple choice
Year 7
1
No diagram
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.
Separating pure salt from dirty rock salt
Short answer
Year 7
1
No diagram
True or false? Solids that do not dissolve in a liquid are called insoluble.
Separating liquids
Multiple choice
Year 7
1
No diagram
What is the process of changing a liquid into a vapour (gas) called?
Separating liquids
Short answer
Year 7
1
No diagram
True or false? When a solution is heated, the solvent evaporates more slowly.
Separating liquids
Multiple choice
Year 7
1
No diagram
Which properties below would be helpful in separating a mixture of substances?
Separating liquids
Multiple choice
Year 7
2
No diagram
True or false? All liquids have the same boiling point of 100℃.
Separating liquids
Multiple choice
Year 7
1
No diagram
In a mixture of two liquids with very different densities, the less dense liquid will ...
Separating liquids
Multiple choice
Year 7
1
No diagram
What is the main purpose of using a 'separating funnel' in the lab?
Separating liquids
Multiple choice
Year 7
1
No diagram
True or false? Decanting is effective for separating liquids with similar densities.
Separating liquids
Multiple choice
Year 7
1
No diagram
If two liquids can mix completely together to form one layer, they are said to be ...
Separating liquids
Short answer
Year 7
1
No diagram
True or false? A separating funnel can be used to separate two liquids that are miscible.
Separating liquids
Multiple choice
Year 7
1
No diagram
Match the keywords with their correct definition.
Separating liquids
Matching
Year 7
5
No diagram
Which of the following techniques should be used to separate miscible liquids?
Separating liquids
Multiple choice
Year 7
1
No diagram
Which of the following processes describe when a substance in the liquid state turns into the gas state?
Simple distillation
Multiple choice
Year 7
2
No diagram
Which property of matter does not change when a substance changes state?
