2. Created by Sean Vamos

3. 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

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

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

6. Quiz Time!

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

8. That’s correct! Next Question

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

10. Cereal A. Element B. Compound C. Mixture

11. That’s correct! Next Question

12. 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.

13. Diamond A. Element B. Compound C. Mixture

14. That’s correct! Next Question

15. 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.

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

17. That’s correct! Next Question

18. 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.

19. Liquid Mercury A. Element B. Compound C. Mixture

20. That’s correct! Next Question

21. 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.

22. Table Salt A. Element B. Compound C. Mixture

23. That’s correct! Quiz Complete

24. 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.

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

26. 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