1. Do Now: 2/24/16 HW: Measuring Matter handout.
Current Events # 9-12 Friday
Do Now: /24/16
- Take out last nights homework
- Molecules and Matter handout. Skip part B at the bottom.

2. S L L S L L S G S G S S S S L S S L L
G/P G S S L

3. Examples: Solid-table, liquid-milk,
and gas-used to cook with
Examples: Solid-seats, liquid-gasoline, and gas-carbon dioxide
Examples: Solid-teeth, liquid-blood,
and gas-oxygen

4. solid
liquid
gas
solid
gas
solid
liquid
gas
solid

6. The Law of Conservation of Matter
Notes:
The Law of Conservation of Matter
No matter how many reactants and products are involved….
…the mass before a reaction doesn’t change after the reaction takes place!

7. What do these symbols mean?
In chemistry, symbols are used to express information in a shorter form.

8. Chemical Formula Vocabulary
Notes:
Chemical Formula Vocabulary
Reactant: present at the start of a chemical reaction
Product: present at the end of a chemical reaction
Example: 2H H20
Reactants
Product

9. Another Example: Reactant: present at the start of a chemical reaction
Product: present at the end of a chemical reaction
Example: 4Fe Fe2 03
Reactants
Product

10. Conservation of Matter Lab
Help yourself to a lab manual
Page 3
Highlight or underline the “Introduction” of this lab as we read it aloud together.

11. Materials & Procedure
We will only be performing Part A of this lab activity.
Materials:
Triple beam balance
Vial with cap
Water
¼ alka seltzer tablet

12. Conclusion Questions Answer the analysis questions independently
BrainPOP:
Conservation of Matter