Basic 4 BST - Week 10 Test

Which substance dissolves partially in water?

• Sugar

• rice

• Sand

Which of the following substances dissolves completely in water?

• Sand

• Salt

• Wood

What is the definition of a solvent?

• A solid substance that dissolves in water

• A liquid substance that can dissolve a solid substance

• A gas substance that dissolves in water

Why is water considered a good solvent?

• Because it's red

• Because many substances dissolve in it

• Because it's solid

What type of substances do not dissolve at all in water?

• Salt

• Sugar

• Oil

Give an example of a solution.

• Lemonade

• Rocks

• Air

Which of the following is an example of a solute?

• Sand

• Salt

• Air

What do we call the mixture of solute and solvent?

• A compound

• A solution

• A mixture

Why is water known as a "universal solvent"?

• Because it's transparent

• Because it can dissolve more substances than any other liquid

• Because it's blue

What is a solute?

• A solid object that dissolves in a solvent

• A liquid object that dissolves in a solvent

• A gas object that dissolves in a solvent