Solubility and Chemical Reactions

Which of these is an example of a soluble substance?

• A rock

• Sand

• Sugar

• Plastic

What does it mean for something to be soluble?

• It floats on water.

• It sinks to the bottom of water.

• It can dissolve in a liquid.

• It changes color in water.

What does it mean for something to be insoluble?

• It can dissolve in a liquid.

• It cannot dissolve in a liquid.

• It makes the liquid change color.

• It makes the liquid taste sweet.

Which of these substances is insoluble in water?

• Salt

• Dish soap

• Hot chocolate powder

• Sand

Plastic waste in the ocean is a big problem because it is insoluble and contains what?

• Harmful chemicals

• Beneficial minerals

• Edible particles

• Natural fibers

What happens to sugar when it is put in hot tea compared to cold lemonade?

• It dissolves slower in hot tea.

• It dissolves faster in hot tea.

• It does not dissolve in hot tea.

• It changes the color of the hot tea.

Oil does not mix with water, but it can dissolve in which liquid?

• Milk

• Juice

• Gasoline

• Vinegar

What does saliva do to food?

• It makes food taste better.

• It helps food stay solid.

• It helps chemically break down food.

• It adds nutrients to food.