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Mixtures and Solutions

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?.

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Mixtures and Solutions

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  1. Mixtures and Solutions Lesson 1 Classifying Mixtures and Solutions

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

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