1. Ch. 1 Sec. 1 Describing Matter

2. ObjectDescription (color, texture, shape,etc.) 1. Describe 9 of the objects. Describing Matter Activity SilverRoundFlexible 2. Classify the objects into 3 categories.

3. matter anything that has mass & takes up space

4. chemistry study of properties of matter & how matter changes

5. substance Single kind of matter that is pure Has specific:  makeup or composition  set of properties ex: salt, sugar

6. 2 kinds of properties of properties physical property can be observed w/out changing it into another substance examples: hardness texture color flexibility chemical property new materials are formed example: flammability ability to react

9. What are the frog’s physical properties?

10. What are the frog’s chemical properties?

12. element Pure substance cannot be broken down into any other substances by chemical or physical means

13. ALL MATTER IS MADE OF ELEMENTS.

14. atom basic particle from which elements are made

15. Elements: One Kind of Atom [01:14]

18. chemical bond force of attraction between 2 atoms

19. molecule 2 or more atoms held by chemical bonds

21. Molecules: More Than One Kind of Atom [00:30]

22. ACTIVITY-MAKING MOLECULES 1.H 2 1.H 2 O 2.CO 2 H 4 3.C 2 H 4 Cl 4 4.CCl 4 H 10 5.C 4 H 10 H 3 6.CH 3 H 3 OH 7.CH 3 OH 8.HH 8.HCO 2 H Blue- Nitrogen- N Yellow- Hydrogen- H Black- Carbon- C Green- Chlorine- Cl Purple- Iodine- I Flourine- F Flourine- F Red- Oxygen- O Orange- Bromine- Br

24. compound Pure substance made of 2 or more elements chemically combined in a set ratio Represented by chemical formula- shows ratio of elements CO 2 H2OH2O Compounds and their Proportions

25. mixture 2 or more substances that are mixed together but not chemically combined cereal

26. solution well mixed mixture sea water, lemonade

27. heterogeneous mixture can see different parts

28. homogeneous mixture substances evenly mixed so you can’t see different parts solution

29. Heterogeneous and Homogeneous Mixtures [01:16]

31. Activity- Separating a Mixture corn Chex wheat Chex Round pretzels Bread- sticks Bagel chips Window- pane pretzels

32. Classify each item as either an element (E), a compound (C), or a mixture (M). You may also use your textbook and the periodic table to help you identify elements. 1.water 2.hydrogen 3.soup 4.soil 5.diamond 6.sugar 7.sulfur 15.iron 16.brass 17.sausage 18.cement 19.oxygen 20.chop suey 21.air 8.iron sulfide 9.mercury 10.nitrogen 11.salt 12.bread 13.gold 14.aspirin

33. Classify each item as either an element (E), a compound (C), or a mixture (M). You may also use your textbook and the periodic table to help you identify elements. 1.water C 2.hydrogen E 3.soup M 4.soil M 5.diamond E 6.sugar M 7.sulfur E 15.iron E 16.brass C 17.sausage M 18.cement M 19.oxygen E 20.chop suey M 21.air M 8.iron sulfide C 9.mercury E 10.nitrogen E 11.salt C 12.bread M 13.gold E 14.aspirin C