1. This contains a variety elements and compounds that ARE NOT chemically combined.
a. water b. element c. compound d. mixture

2. Alex goes into the garden and digs up a shovel full of dirt. This is a _________ mixture.
a. homogeneous b. heterogeneous c. pure substance d. mixture

(3 and 4 are in the pic)

5. A sample of water taken from a local lake (where floating particles are present) would be best described as a _________________.
a. homogeneous mixture.
b. heterogeneous mixture.
c. pure substance
d. compound.

6. In what type of mixture are the substances evenly distributed throughout the mixture?
a. homogeneous b. heterogeneous c. All types of mixture d. None of the choices

7. Mr. Edgar has a bottle of rubbing alcohol, some candle flakes, bottle of cooking oil, and a bottle of mineral water on his table. If Mr. Edgar ask you to prepare a homogeneous mixture using two of the materials on the table, which material would you use?
a. rubbing alcohol and candle flakes
b. rubbing alcohol and mineral water
c. cooking oil and mineral water
d. candle flakes and cooking oil

8. Which of the following groups contains only mixture?
a. air, bronze, 18-karat gold, silver
b. air, bronze, carbon dioxide, oxygen
c. brine, refined sugar, mercury. Oxygen
d. carbon dioxide, cooking oil, sugar

9. Substance A and Substance B are both solid and differs in their size. Which method of separating mixture below is the most appropriate to separate them?
a. Filtration b. Centrifugation c. Chromatography d. Sieving

10. A liquid mixture contains substance A which is solid and substance B which is liquid. The two substances differ in their boiling point. Which of the following method is used to separate them?
a. Filtration b. Centrifugation c. Evaporation d. Sieving