Seperation And Planets Third Year Revision

Question 1

When a solid dissolves in a liquid the solid, the liquid and the whole mixture are called what?

Answer 1

• When a solid dissolves in a liquid the solid is called the solute.
• The liquid is called the solvent.
• The whole mixture is called a solution.

Question 2

Insoluble

Answer 2

When materials do not dissolve in certain liquids.

Question 3

Filtering

Answer 3

Filtering is a way of separating an insoluble solid from a liquid. We use a funnel and filter paper.

Question 4

Filtration

Answer 4

Equipment-Funnel, Filter paper, beaker
Used for-Insoluble solid in liquid
Example-sand in water

Question 5

Evaporation

Answer 5

Equipment-Evaporating dish, Bunsen burner, Wire gauze
Used for-Soluble solid in liquid
Example-salty water

Question 6

Condemnation

Answer 6

Equipment-Liebig Condenser, Bunsen burner, Round bottom flask thermometer
Used for-Soluble solid in liquid
Example-salty water

Question 7

Chromatography

Answer 7

Equipment-Chromatography paper, Solvent, beaker
Used for-Coloured mixture
Example-ink

Question 8

Mercury

Answer 8

Mercury is the closest planet to the sun. It is a rocky planet. sun. The atmosphere is extremely thin.

Question 9

Venus

Answer 9

Venus is the hottest planet. The air pressure is also very high. It takes 224 days to orbit the sun and it spins the opposite way to Earth.

Question 10

Mars

Answer 10

Mars is the fourth planet from the sun. It has a rocky surface. It is very cold. Mars has two moons. Ir has a very thin atmosphere of carbon dioxide.