Unit 6: Properties of Matter in Aqueous Solutions - 7th Sci

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution. In a Kool-aid mixture, the solvent is water.

Front

What evidence indicates a chemical change has occurred?

Back

When two liquids are mixed and a solid substance forms, it indicates a chemical change.

Front

What part of the solute does the solvent interact with?

Back

The solvent only interacts with the surface of the solute.

Front

How do smaller salt crystals affect the rate of dissolving in water?

Back

Smaller crystals increase the surface area and speed up dissolving.

Front

What are solutions composed of?

Back

Solutions are composed of solutes and solvents.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution.

Front

What is an example of a physical change?

Back

Cutting a piece of paper into many small pieces is an example of a physical change.

Front

What happens to sugar when added to iced tea?

Back

Sugar dissolves into the liquid, which is a physical change.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance being dissolved, while a solvent is the substance that dissolves the solute.

Front

What is the role of water in a Kool-aid mixture?

Back

Water acts as the solvent that dissolves the Kool-aid powder and sugar.