Science - Separation Techniques and Mixtures

Question 1

Evaporation

Answer 1

the process that changes liquid water to gaseous water (water vapor)

Question 2

Filtering

Answer 2

to remove solids from liquids or gases, or to remove particular types of light, using special equipment

Question 3

Crystallisation

Answer 3

the solidification of a liquid substance into a highly structured solid

Question 4

Distillation

Answer 4

process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form

Question 5

Decanting

Answer 5

the process of separation of liquid from solid and other immiscible (non-mixing) liquids, by removing the liquid layer at the top from the layer of solid or liquid below

Question 6

Magnetic attraction

Answer 6

the process of separating components of mixtures by using a magnet to attract magnetic substances

Question 7

Sedimentation

Answer 7

heavier components of the mixture settle on the bottom, due to gravity

Question 8

Chromatography

Answer 8

a process for separating components of a mixture. To get the process started, the mixture is dissolved in a substance called the mobile phase, which carries it through a second substance called the stationary phase

Question 9

Solution

Answer 9

a mixture in which all the particles are evenly mixed

Question 10

Suspensions

Answer 10

a heterogeneous mixture in which the solid particles are spread throughout the liquid without dissolving in it

Question 11

Colloid

Answer 11

mixtures with particle sizes that consist of clumps of molecules

Question 12

Precipitation

Answer 12

The emergence of the insoluble solid from
a dissolved solution