1. Chapter 1
Matter and Change

2. Chemistry
Def – The study of matter and the changes that matter undergoes

3. Matter
Def – anything that has mass and occupies space

4. Mass vs Weight
Mass – a measure of the amount of matter in an object (grams)
Weight – a measure of the gravitational force acting upon an object (Newtons)

5. Extensive v Intensive properties
Extensive properties depend upon the amount of matter present
Ex: Mass, volume, etc
Intensive Properties do NOT depend upon the amount of matter present
Ex: Boiling point, melting point, density,etc
**Intensive Properties are more useful in terms of identifying substances!

6. Physical Properties
definition: a characteristic that can be observed or measured without changing the identity of the substance.
ex: melting point, boiling point, density, color

7. Chemical Properties
definition: a substance’s ability to undergo changes that transform it into a different substance.
combustion (burning)
reaction with an acid

8. Properties of Paper
Brainstorm – Chemical and Physical Properties of paper.

9. How is Matter Classified?
BBC video

10. Classification of Matter
Elements Compounds Mixtures
homogeneous heterogeneous

11. Elements
Elements are pure substances that contain only one type of atom.
Examples: Cu, O2, C60

12. Compounds
Compounds are pure substances that contain two or more types of atoms that are chemically bonded together. They can be broken down into simpler substances.
Ex: H2O, NaCl, CO2

13. Mixtures
Mixtures contain two or more substances (elements or compounds) that are blended together, but NOT chemically bonded. Each substance maintains its own identity.
Ex: saltwater, soil

14. Homogeneous Mixtures
The substances in a homogeneous mixture are spread uniformly throughout each other.
Ex: saltwater

15. Heterogeneous Mixtures
The substances in a heterogeneous mixture are not evenly spread throughout each other.
Ex: salad dressing