1. Essential Question: How do scientists develop explanations?

2. The Scientific Method

3. Variables: Independent Variable: Dependent Variable:
what you are doing in the experiment.
Independent Variable:
Dependent Variable:
Controlled Variable:
what you think will happen in the experiment.
What you want to remain constant and unchanging in the experiment.

4. Variables

5. Replication vs Repetition
Repetition: An experiment is repeated by the same person.
Replication: An experiment is repeated by another person.

6. Lesson 2 - Visual Summary and Lesson Review Pages 24 & 25
Classwork/Homework
Lesson 2 - Visual Summary and Lesson Review Pages 24 & 25