1. When someone opens a bottle of carbonated drinks, the pressure inside the bottle decreases. This results in: *
A. an increase in the solubility of CO2 gas in water
B. a no change in the solubility of CO2 gas in water
C. an increase in the solubility of sugar in water
D. a decrease in the solubility of CO2 gas in water
2. Winemakers also use decanting to separate the fermented drink from the sediments that settle at the bottom after fermentation. *
A. True
B. False
3. Which one of the following solids is insoluble in water? *
A. sugar
B. sand
C. copper sulfate
D. salt
4. A mixture of two or more uniformly dispersed substances is *
A. colloid
B. solution
C. suspension
D. water
5. Sieving can help in separating food from their soup. *
A. True
B. False
6. What type of mixture will not allow light to pass through? *
A. suspension
B. colloid
C. solution
D. mixture
7. Salt can be produced through evaporation. *
A. True
B. False
8. Magnetism is important in the community to filter water. *
A. True
B. False
9. .Our coffee pot has a filter to keep the grounds out of your coffee, and even a tea bag is considered a filter *
A. True
B. False
10. Which one of the following would you use to separate sand from iron filings? *
A. a bar magnet
B. filter paper
C. chromatography paper
D. alum
A. an increase in the solubility of CO2 gas in water
B. a no change in the solubility of CO2 gas in water
C. an increase in the solubility of sugar in water
D. a decrease in the solubility of CO2 gas in water
2. Winemakers also use decanting to separate the fermented drink from the sediments that settle at the bottom after fermentation. *
A. True
B. False
3. Which one of the following solids is insoluble in water? *
A. sugar
B. sand
C. copper sulfate
D. salt
4. A mixture of two or more uniformly dispersed substances is *
A. colloid
B. solution
C. suspension
D. water
5. Sieving can help in separating food from their soup. *
A. True
B. False
6. What type of mixture will not allow light to pass through? *
A. suspension
B. colloid
C. solution
D. mixture
7. Salt can be produced through evaporation. *
A. True
B. False
8. Magnetism is important in the community to filter water. *
A. True
B. False
9. .Our coffee pot has a filter to keep the grounds out of your coffee, and even a tea bag is considered a filter *
A. True
B. False
10. Which one of the following would you use to separate sand from iron filings? *
A. a bar magnet
B. filter paper
C. chromatography paper
D. alum
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Answers & Comments
Answer:
1. C.
2. A.
3. B.
4. B.
5. A.
6. C.
7. A.
8. B.
9. A.
10. A.
Explanation:
1. Carbonated drinks have a high percentage of sugar.
2. They use decantation to separate the 2 elements
3. Sand is not a soluble matter
4. Solution is the answer
5. True
6. Solution is transparent
7. True cause evaporation is the separation method in salt and water
8. False cause magnetism is only in metal and sand
9. True
10. Magnetism is the only method we can use
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