Which statement is true?

• All solutions are mixtures.

• All mixtures are solutions.

• In a mixture, a substance must dissolve in another substance.

When a substance dissolves it--

• changes its physical state

• melts.

• breaks down into smaller pieces.

Which of the following mixtures is a NOT a solution?

• Salt and water

• Lemonade

• Sand and water

What is a solution?

• A mixture of 3 or more substances

• A special type of mixture that can be separated using your fingers

• A special type of mixture in which all parts are evenly dispersed

Select all statements that are true.

• Matter can be soluble or insoluble.

• Solids cannot dissolve in water.

• Solids, liquids, and gases can be soluble in water.

• Sand is insoluble in water.

When does a solution form? Select TWO correct answers.

• When a substance dissolves in another substance

• When any two substances are combined

• When a substance is evenly dispersed throughout another substance

• When a substance is removed from a mixture

Salt and water form a solution because--

• salt dissolves in water.

• salt melts.

• salt evaporates from water.

Which substance is soluble in water?

• Plastic

• Vegetable oil

• Powdered drink mix

Which substance dissolves in water?

• Honey

• Lamp oil

• Sand