Mixing and separating mixtures

Which is an example of a solvent ?

• Salt

• Coffee Powder

• Hot water

• Sugar

Solid solutes dissolve faster when it is

• Stirred

• Not Stirred

___________ is a solute.

• Tea

• Lemon Juice

• Chocolate Powder

Which one is an example of a solute ?

• River water

• Soy sauce

• Sugar

_______ is a solvent.

• Pepsi

• Pepper

• Granulated sugar

Explain the process of sieving in your own words.

• Sieving is the process of mixing particles together

• Sieving is the process of separating particles of different sizes by passing them through a sieve or a mesh.

• Sieving is the process of boiling particles to separate them

• Sieving is the process of melting particles to separate them

What type of materials does handpicking work best for?

• a) Invisible particles

• b) Large, easy-to-see items

• c) Liquids

• d) Gases

Which of the following is NOT a use of sieving?

• a) Removing impurities from grains

• b) Separating flour from lumps

• c) Separating stones from rice

• d) Removing sand from gravel

Which method is better for separating small particles?

• a) Handpicking

• b) Boiling

• c) Freezing

• d) Sieving

The process by which a liquid changes to a gas at the liquid's surface....

• evaporation

• melting

• freezing

• condensation