1. CHEMISTRY…IT’S ALL AROUND US
What is Chemistry?

2. Objectives:
The learner will understand the role of chemistry in their lives.
TLW investigate the characteristics of matter.
TLW explore the interactions of matter & energy.

3. Key Topics States of Matter Changes of Matter
Evidence of a Chemical Change
Chemical Reaction/Chemical Equation

4. What is Chemistry?
Chemistry is the study of chemicals their properties, and the reactions in which they are involved.

5. What is a Chemical?
Chemical- any substance that has a definite composition (everything).

6. What is a Chemical Reaction?
Chemical reaction- the process by which one or more substances change to different substances.

7. What are the 3 States of Matter?
Solid
Liquid
Gas

8. States of Matter Solid Fixed volume Fixed shape Liquid No fixed shape
Gas
No fixed volume

9. What are Changes of Matter?
Two Categories:
Physical
Chemical

10. What are Physical Changes?
Changes in which the substance stays the same.
Changes of states

11. What are Chemical Changes?
Substance changes to different substance.

12. What type of change is it……..?
Cutting paper
Wood burning
Rust
Ice cream melting
Water boiling
Milk souring

13. Answers: Cutting paper-physical Wood burning-chemical Rust-chemical
Ice cream melting-physical
Water boiling-physical
Milk souring-chemical

14. What are some evidences of Chemical Changes?
Evidence that a chemical change may be happening usually involves: 1) evolution of a gas. 2) formation of a precipitate. 3) an energy change. 4) a color change.

15. Evidence of a Chemical Change
Gas Evolution
Bubbles form or odor
Change in Energy
Change in temp. or light given off
Formation of a Precipitate
Cloudy appearance; precipitate forms
Color change
Color looks different

16. Chemistry……It’s All Around Us!!!!!!!
Please keep your Scientific Notebook in order.
Review All Work Daily