Mixtures

Question 1

What is a mixture?

Answer 1

A mixture is made up of two or more substances or materials that have different physical properties.

Question 2

Ways of separating mixtures

Answer 2

Handsorting (using your hand)
Sieving (solids don’t go through the sieve, only the liquid)
Filtration ( separating mixtures with particles of different sizes)
Magnetism (using a magnet)
Evaporation (Boiling water, then it turns into water vapor, the solids are left behind)
Chromatography ( separating a solution of different colours)
Distillation (a method of separating two liquids with different boiling points, used to purify liquids also or recover solvent from solution)

Question 3

Examples of separating mixtures

Answer 3

Handsorting - separating raisins and nuts
Sieving - separating cooked pasta and water
Filtration - separating coffee grounds and water.
Magnetism - separating iron fillings and sand
Evaporation - separating salt and water.
Chromatography - separating black ink into different colours.
Distillation - wanting to get pure water from sea water.