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# Mixtures and Solutions PowerPoint PPT Presentation

Mixtures and Solutions. Lesson 1 Classifying Mixtures and Solutions. What is a Mixture?. A mixture is a combination of two or more different kinds of matter (solid, liquid, gas) or substances, each of which keeps its own physical properties. What is a Mixture?.

Mixtures and Solutions

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## Mixtures and Solutions

Lesson 1

Classifying Mixtures and Solutions

### What is a Mixture?

• A mixture is a combination of two or more different kinds of matter (solid, liquid, gas) or substances, each of which keeps its own physical properties.

### What is a Mixture?

• A substance is anything that contains only one kind of material. Examples would be sugar, water, iron filings

• When you mix sugar with iron filings, you can easily see the two solids in the mixture.

### Identifying Mixtures

• Homogenous Mixtures

• A mixture in which the different substances are mixed evenly, and are too small to be seen.

• No matter how long you let a powdered drink mix and water stand, like Kool-Aid, the evenly mixed particles that make up this homogenous mixture will not separate.

### Identifying Mixtures

• Heterogenous Mixtures

• A mixture in which the different substances are mixed unevenly.

• Many times you can see the different substances in the mixture. Examples would be: bread, chocolate milk, smoke and air, paper, sugar mixed with iron filings.

### What is a Solution?

• Sugar and Water

• When you mix sugar and water, it’s not easy to tell what is in the mixture.

• The sugar seems to disappear.

• But if you taste it, you’ll find that the water is sweet. It is distributed evenly throughout the mixture.

• When one substance dissolves in another, the two form a solution.

• In other words, any mixture made up of tiny particles that are evenly mixed and do not settle out is called a solution.

### What is a Solution?

• A solution is a specific type of mixture.

• Are all solutions mixtures? Yes

• Are all mixtures solutions? No

• Solubility is the ability to be dissolved.

• Sugar is soluble in water, but ground black pepper is not.