Solubility Quiz

What does "soluble" mean?

• A substance that sinks in water

• A substance that dissolves in a liquid

• A substance that floats on water

• A substance that absorbs water

Which of the following is an example of a soluble substance?

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Which of these substances is insoluble in water?

• Salt

• Sugar

• Rock

• Vinegar

What happens when you stir salt into water?

• The salt disappears completely

• The salt remains visible but settles at the bottom

• The salt changes color

• The salt forms a thick paste

Which of the following is an example of an insoluble material?

• Honey

• Oil

• Lemon juice

• Vinegar

Why does sand not dissolve in water?

• Because it is too big

• Because its particles do not break down in water

• Because water repels sand

• Because sand is heavier than water

What does "insoluble" mean?

• A substance that dissolves in water

• A substance that does not dissolve in a liquid

• A substance that floats on water

• A substance that changes color in water

What term describes a liquid mixture where a substance dissolves completely?

• Suspension

• Solution

• Emulsion

• Sediment

Which method is best for separating sand and water?

• Evaporation

• Distillation

• Filtration

• Sedimentation

What is the best way to increase the solubility of sugar in water?

• Using cold water

• Using a larger container

• Stirring and heating the water

• Adding oil