Grade 6 SOLUTIONS

What is the purpose of filter paper?

• To dissolve particles in a mixture

• To color the mixture

• To separate insoluble particles from a mixture

• To heat the mixture

What effect does small insoluble bits of round coffee beans passing through the filter paper have on the coffee?

• The coffee will become smoother

• The texture of the coffee will be grainy

• The coffee will become bitter

• The coffee will become sweeter

What is the scientific name of a mixture in which the solute is insoluble in the solvent?

• Suspension

• Solution

• Emulsion

• Colloid

Why do we use filter paper to separate insoluble particles in a mixture?

• To make the mixture smell better

• Because the particles are insoluble in water

• To make the mixture colorful

• To increase the temperature of the mixture

Explain how a sediment is formed.

• Particles float on the surface of a liquid

• Particles dissolve in a liquid

• Particles evaporate from a liquid

• Particles settle at the bottom of a liquid

When some of the insoluble particles settle at the bottom of a liquid, they form _______________.

Petrol and water can be separated by __________.

Heptane and octane can be separated by __________.

Starch in water can be separated by __________.

Sugar and sand can be separated by __________.