1. CHEMISTRY SEPTEMBER 16, 2014 Matter

2. SCIENCE STARTER Work on Science starter You have 3 minutes This is silent and individual work

3. OBJECTIVES SWBAT – Define matter – Classify matters

4. AGENDA Science Starter Matter video Discuss what is matter Matter worksheet

5. Quiz makeup Quiz makeup will be this Thursday You can come during my office hours (4 th period) or during 9 th period (all the way up to 4:15PM)

6. Matter Video

7. What is matter? anything that has mass and take up space

8. How to classify matter

9. Is it Uniform? If it is uniform = homogeneous If it is not uniform = heterogeneous

10. Examples

11. Example

12. Pure Substance sample of matter, either an element or a compound that has definite chemical and physical properties

13. Element a substance that can not be separated or broken down into simpler substances by chemical means. All atoms of an element have the same atomic number (E.g., oxygen, carbon) – - can be a single atom – - can be a molecule – - two or more atoms of the same type.

14. Example

15. Compound a substance made up of atoms of two or more different elements joined by chemical bonds (e.g., water, carbon dioxide) – Properties of the compond may be different from the properties of the original elements – Smallest unit is a molecule Two or more atoms of different types

16. Example

17. Molecule the smallest unit of a substance that keeps all of the physical and chemical properties of that substance.

18. Example

19. Mixture a combination of two or more substances that are not chemically combined (E.g., glass of tea, – Mixture can vary in composition and properties – Properties of the mixture reflect the properties of the substances it contains – Can be homogeneous or heterogeneous

20. Heterogeneous not uniform Properties are not uniform throughout Different regions have different properties

21. Example

22. Homogeneous uniform throughout Properties are uniform throughout

23. Example

24. Matter Worksheet Do worksheet Read the Aim 5