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Created by Sean Vamos

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Quick Review: Elements A pure substance which cannot be broken down into two or more simpler substances by any means (1 atom or a molecule made up of 1 type of atom) Found on the Periodic Table

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Quick Review: Compounds A substance that can be broken down into a more simpler state (smaller compounds or even elements) by chemical means.

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Quick Review: Mixtures A substance that can be broken down into a simpler substance but only by physical means (no chemical combination)

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Quiz Time!

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Fresh water ice A. Element B. Compound C. Mixture

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Thats correct! Next Question

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Incorrect! This fresh water ice is a compound as it is made up of two elements, hydrogen and oxygen. (H 2 O)

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Cereal A. Element B. Compound C. Mixture

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Thats correct! Next Question

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Incorrect! A bowl of cereal is a mixture as the milk and cereal are not chemically combined. The cereal soaks up the milk but only because it is porous.

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Diamond A. Element B. Compound C. Mixture

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Thats correct! Next Question

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Incorrect! A diamond is actually pure solidified carbon. Coal is elementally the exact same as diamond but the only difference between the two is how they are formed.

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The ocean (salt water) A. Element B. Compound C. Mixture

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Thats correct! Next Question

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Incorrect! The ocean is a mixture of salt (NaCl) and water. They are not chemically combined as the salt does not dissolve in the water. Sugar water, however would be a compound as the sugar would dissolve.

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Liquid Mercury A. Element B. Compound C. Mixture

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Thats correct! Next Question

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Incorrect! Pure liquid mercury is an element. At room temperature it is liquid. Even though it is a liquid at such average temperatures, it is still a metal.

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Table Salt A. Element B. Compound C. Mixture

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Thats correct! Quiz Complete

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Incorrect! Table salt, or NaCl, is a compound made up of a positive sodium ion (Na) and a negative chlorine ion (Cl). They are chemically combined making it a compound, not a mixture.

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Quiz complete! Excellent job! Wait for your instructor to continue the lesson. Sources

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Sources (pictures and sounds) All pictures were used royalty free from the website dreamstime.com or from the clip art gallery directly from PowerPoint Sounds were all gained royalty free as well through findsounds.com