1. Welcome Back! Take a seat anywhere.

2. Agenda Heading to Media Center for Pretest Take a look at wiki Review of chapter 1 Hand out notes Hand out books Need lab notebook tomorrow!

3. Review of chapter 1 Grab a white board and marker Going to review whole chapter today

4. Describe the scientific method and the purpose of it.

5. Describe the differences between a hypothesis, theory and law?

6. What is the law of conservation of mass and why is it useful?

7. An antacid tablet weighing 0.853 g contained calcium carbonate as the active ingredient, in addition to an inert binder. When an acid solution weighing 56.519 g was added to the tablet, carbon dioxide gas was released, producing a fizz. The resulting solution weighed 57.152 g. How many grams of carbon dioxide were produced?

8. Draw pictures to illustrate the three phases of matter.

9. Describe what occurs during a physical change.

10. Describe what occurs during a chemical change.

11. Is grass growing an example of a physical or chemical change? Why?

12. Is a cake baking an example of a physical or chemical change? Why?

13. Is salt dissolving an example of a physical or chemical change? Why?

14. Describe how to tell the difference between an element, compound and mixture. What information is necessary?

15. Identify each of the following elements from its properties under normal conditions. Red-brown liquid White, waxy solid Soft, yellow metal Soft, black solid Reddish metal Brittle, yellow solid Greenish-yellow gas Silver-colored liquid metal

16. Describe the differences between accuracy and precision. Compare to bulls eye.

17. Describe significant figures. What’s the point?

18. A cylinder with circular cross section has a radius of 2.45 cm and a height of 56.32 cm. What is the volume of the cylinder?

19. What is the International System of Units?

20. List the base units.

21. List the prefixes.

22. Describe how to change from one unit into another.

23. What are the conversion factors between o F, o C, and K? What’s so special about K?

24. How would you determine the identity of an unknown element?

25. If the necessary mass and density of a liquid are known, how would you determine the volume needed?

26. A room measures 10.0ft X 12.0ft and is 9.0ft high. What is its volume in liters?

27. If an atom has a radius of 85 pm, calculate the percentage of the volume occupied by the atoms of the gas, assuming STP conditions.

28. The density of an irregularly shaped object is desired. How would you determine it?

29. A student determined the density of the metal sample to be 19.0 g/cm 3. The true density is 19.3 g/cm 3. The student claims the sample to be pure. Discuss the validity of the claim and possible sources of error.

30. What does an interactive ppt mean to you? How many have used ppt? 2007?

31. Interactive review http://www.pppst.com/templates.html