1. Chemistry

2. Physical and Chemical Changes

3. Candle vs. Ice Cube 1.What do you think will happen to the candle during this experiment? 2.What do you think will happen to the ice cube during this experiment? 3.Will the candle weigh more, less, or the same after the experiment? 4.Will the ice cube weigh more, less, or the same after the experiment?

4. Physical Physical Property- characteristic of a substance that can be observed without changing the substance into another substance. Physical Change- any change that alters the form or appearance of a substance but does not make the substance change into another substance.

5. Chemical Chemical Property- characteristic of a substance that describes its ability to change into another substance. Chemical Reaction- a change in matter that produces one or more new substances.

6. Chemical vs. Physical Chemical Flammability Energy Release Not Reversible Physical Bending Crushing Breaking Cutting

7. Concept Map Physical Physical Reaction

8. Concept Map Chemical Chemical Reaction

9. The Law of Conservation of Mass During a chemical reaction, matter is not created nor destroyed. The principal of conservation of mass states that in a chemical reaction, the total mass of the reactants must equal the total mass of the product.

10. Law of Conservation of Mass Activity In two to three sentences describe how the nuts and bolts activity compares to the law of conservation of mass.

11. Candle vs. Ice Cube Part 2 1.What changes did you observe in the candle? 2.Why did these changes occur? 3.Was this a chemical or a physical change? 4.What changes did you observe in the ice cube? 5.Why did these changes occur? 6.Was this a chemical or a physical change?

12. Candle vs. Ice Cube Part 3 Does the law of conservation of mass apply to both of these experiments. Explain your answer in at least 2-3 sentences.

13. Balancing and Understanding Common Chemical Equations

14. Common Compounds In the space below list as many common compounds as possible. List the compound and formula. Example: Compound-Water Formula- H 2 0

15. Common Compounds Compound Sodium Chloride Water Sugar Oxygen Gas Carbon Dioxide Nitrogen Gas Formula NaCl H 2 O C 6 H 12 O 6 O 2 CO 2 N 2

16. What is a Chemical Equation Chemical Equation- uses chemical formulas and other symbols instead of words to summarize a reaction. Example: CaCO 3 CaO + CO 2

17. Structure of an Equation Reactant- the substance that you have at the beginning of the equation. Product- substance that you have at the completion of the equation. CaCO 3 CaO + CO 2 Symbol Formula

18. Structure of an Equation Subscript- number written below and to the right of a chemical symbol. Coefficient- number placed in front of a chemical formula in an equation. CaCO 3 CaO + 3CO SubscriptCoefficient

19. Common Compounds List the formula for the following compounds- Sodium Chloride Water Sugar Oxygen Gas Carbon Dioxide Nitrogen Gas

20. Structure of an Equation Describe the following terms: Coefficient- Subscript- Chemical Symbol- Chemical Formula-

21. Structure of an Equation Label the parts of the equation CaCO 3 CaO +3CO