Separating Mixtures KS3

Name the separation technique used to recover the salt from seawater.

• evaporation

• distillation

• filtration

• decanting

Two or more substances mingled together, but not chemically combined are known as a __________

• residue

• solution

• distillate

• mixture

In a coffee machine, the ground coffee is separated from the coffee solution by using..

• sand paper

• filter paper

• toilet paper

• tissue paper

Which one of the following would you use to separate sand from iron filings?

• a bar magnet
• filter paper
• chromatography paper
• alum

Water and alcohol are easily separated by distillation because of their ______________

• different melting points

• different colours

• different densities

• different boiling points

Making a mixture results in ___________________ only.

• chemical reactions
• separate parts
• physical changes
• two subtances

To separate iron filings and sulfur what method should you use?

• filtration 

• sorting

• magnet

• boiling

Mixtures of dyes can be separated by means of..

• crystallization

• sublimation

• chromatography

• sedimentation

Which separation technique uses the apparatus shown in the diagram?

• filtration 
•  crystallisation
• distillation
• chromatography

A saturated solution:

• is always cold
• as a lot of water in it
• will not dissolve any more solvent
• will not dissolve anymore solute