Mixtures and Solutions

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded together. Examples include salad, air, and sand and salt.

Front

What is a solution?

Back

A solution is a special type of mixture where one substance (the solute) is completely dissolved in another (the solvent). An example is saltwater.

Front

What does it mean to separate a mixture?

Back

To separate a mixture means to divide it into its individual parts or components.

Front

What is evaporation?

Back

Evaporation is the process by which a liquid turns into a gas when heat is added.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without changing its chemical composition. Examples include cutting, folding, or melting.

Front

What is a filter used for?

Back

A filter is a tool used to separate solid particles from liquids or gases. For example, it can be used to separate sand from water.

Front

What happens to salt when added to water?

Back

When salt is added to water, it dissolves and changes shape, becoming part of the solution.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solution. In saltwater, salt is the solute.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute to form a solution. In saltwater, water is the solvent.

Front

What is the difference between a mixture and a solution?

Back

A mixture contains two or more substances that are not chemically combined, while a solution is a mixture where one substance is completely dissolved in another.