GRADE 6 # 2

Which happens if you mix powdered coffee with water?

• The powdered coffee will dissolve in water.

• The powdered coffee will form a layer.

• The powdered coffee will not dissolve in water.

• The powdered coffee will settle at the bottom of the water.

What is the solvent in a cup of milk?

• sugar

• milk powder

• water

• sugar and milk

Which of the following mixtures is not an example of a suspension?

• salt and water

• oil and water

• sand and water

• chalk and water

What kind of mixture is formed when oil is mixed with water?

• solution

• water

• colloids

• Suspension

Which of the following is an example of a colloid?

• mayonnaise

• cooking oil

• soft drinks

• bubbles in water

What phenomenon occur when dispersed colloid particles scatter light?

• Tyndall effect

• shaft effect

• miscible

• Immiscible

An _________ is a sol in which the suspended particles are liquid droplets and the continuous phase is also a liquid. The 2 phases are immiscible, otherwise a solution would form.

• aerosol

• emulsion

• sol

• foam

Soda pop, whipped cream, and beaten egg whites are examples of what type of colloids?

• foam

• Emulsion

• Sol

• Aerosol

James is preparing fruit salad for his friends. Fruit salad is what kind of mixture?

• Suspension

• Heterogeneous

• Homogeneous

• Solution

Mechelle drinks a glass of water before going to sleep. Milk is what kind of mixture?

• Solute

• heterogeneous

• Homogeneous

• Solvent