1. Chapter 1 Introduction: Matter and Measurement

2. Chemistry: The study of matter and the changes it undergoes.
Define matter
What is meant here by change?

3. Chemistry
How do we talk about things we cannot see?

4. Chemistry: What do you know? What is Defined? What do you think?
What do you believe?

5. Semester Key Idea Knowing vs. Thinking Which comes First?2

6. Observation Qualitative and Quantitative Things you can know are observable!2

7. Hypothesis Explains an observation
Hypothesis Explains an observation. May be changed as soon as new information comes available. Must be testable. Now your thinking! 2

8. Experimentation Checking your hypothesis by testing the “what if” This creates more knowing which, in turn, makes more thinking happen! 2

9. Steps in the Scientific Method
1. Observations
quantitative
qualitative
2. Formulating hypotheses
possible explanation
3. Performing experiments
gathering new information to decide whether the hypothesis is valid

10. Scientific Method:
A systematic approach to ____________.

11. Outcomes Over the Long-Term
Theory (Model)
A set of tested hypotheses that give an
overall explanation of some natural phenomenon.
Natural Law
The same observation applies to many
different systems
Example - Law of Conservation of Mass

12. Law vs. Theory A law summarizes what happens.
A theory is an attempt to explain why something happens.

13. The various parts of the scientific method
The various parts of the scientific method. Note that The Law comes from the observations of the many experiments and does not attempt to explain the observations. The theory explains the observations.

14. Semester Key Idea Knowing vs. Thinking Which comes First
Semester Key Idea Knowing vs. Thinking Which comes First? Link to How I write Questions 2