Soluble vs Insoluble Quiz

What happens when you mix sugar with water?

• It turns into a solid.

• It sinks to the bottom.

• It dissolves and disappears.

• It floats on top.

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

• Sand

• Salt

• Sugar

• Hot chocolate powder

Why is plastic waste a problem in the ocean?

• It is insoluble and contains toxic chemicals.

• It turns into harmless substances.

• It floats and is easily removed.

• It dissolves and pollutes the water.

Why does sugar dissolve faster in hot tea than in cold lemonade?

• Cold lemonade contains more sugar.

• Cold water is denser than hot water.

• Hot water has more energy to break down sugar.

• Sugar is naturally attracted to hot liquids.

What role does saliva play in digestion?

• It mixes food with water.

• It dissolves food before swallowing.

• It cools down the food.

• It adds flavor to the food.