Mixtures

Question 1

Filtration

Answer 1

to separate an insoluble substance from a soluble substance

Used to separate heterogeneous mixtures composed of solids and liquids

Question 2

Sedimentation

Answer 2

When more dense materials drop to the bottom

Question 3

Decantation

Answer 3

decantation is when you pour the liquid at the top away

Question 4

Centrifugation

Answer 4

Centrifugation is when we spin a mixture in a centrifuge, this helps to settle finer particles that may not settle naturally

Question 5

Evaporation

Answer 5

Evaporation is when you boil off the liquid (solvent) and it leaves the dissolved material (solute) behind

Question 6

Distillation

Answer 6

Distillation uses evaporation but then also collects the gases, the condenser converts the gas back into a liquid, and it is collected in a flask

Question 7

Fractional

Answer 7

Fractional distillation is used for mixtures that have many different substances in them, that all have slightly different boiling points

Question 8

Crystallisation

Answer 8

results in the formation of pure solid particles from a solution containing the dissolved substance

Question 9

Electrostatic

Answer 9

separate charged solid particles from a gas

Question 10

Sieving

Answer 10

separate a mixture of solids with different particle sizes