1. What type of solution is formed when gas is dissolved in liquid? *

2 points

carbonated water

hard water

vinegar

wine

2. Which of the following environmental problems can be separated by physical manipulation? *

2 points

oil spill

garbage in the landfill

flood water

smog

3. Which substance is a mixture? *

2 points

oxygen

tap water

chicken noodle soup

carbon dioxide

4. Which is a solvent in a cup of coffee? *

2 points

coffee

creamer

sugar

water

5. The children prepared juice drink for their food festival by dissolving powdered juice in a water. What kind of mixture did they form? *

2 points

colloids

suspension

solution

saturated solution

6. An oil spill is one of the environmental problem that occur in the bodies of water. What kind of mixture is formed when oil is mixed with water? *

2 points

colloids

suspension

solution

saturated solution

7. Which is an example of a colloid? *

2 points

mayonnaise

liquid juice

cooking oil

bubbles in water

8. Which is a miscible solution? *

2 points

coconut oil to distilled water

bleach to water

gasoline to tap water

grease to liquid soap

9. ________ is a technique used in separating a soluble solid from a liquid ( a soluble substance does dissolve to form a solution ). *

2 points

filtration

evaporation

decantation

sieving

10. _______ is a technique in which an insoluble solid is separated from a liquid. It uses a filter like mesh cloth or filter paper to separate solid components from a liquid. *

2 points

decantatio

sieving

evaporation

filtration

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