1. Warm-up
Natural Systems are usually “open systems.” How are open systems different than “closed systems?”
Human actions create ___________ in all other parts of the Earth System.
What are the 2 sources of energy for the Earth System?
What is a non-renewable resource?

2. “What is Scientific Inquiry?”
Chapter 1, Section 5

3. All Science is based on 2 beliefs…
Natural world interacts in
consistent, predictable ways.
Understand consistent behavior through careful, systematic study.
We can learn what to EXPECT.

4. Recall: Scientific Method.
Question (find a problem)
Observation (Research)
Hypothesis (guess)
Experiment
Record and Analyze results
Conclude (“this is what we found…”)

5. Scientists repeat stuff.
So differences caused by natural
variation become clear.

6. Hypothesis
An Explanation that is tested to determine “validity” (correctness)
must be tested and analyzed

7. Theory. Theory: When a Hypothesis survives LOTS of
testing others have been eliminated.
Theory:
Well-tested belief
Widely accepted
Explains certain observable facts

8. Assignment Chapter 1 Assessment p.29-30 #1-6, 8-15, 17-20, 23, 32-33
Write Question & Answer.