1. The Methods of Science
Chapter 1 Section 3

2. How do you get to the Jersey Shore?
__________________________________
What does this have to do with the scientific method?

3. How to solve any problem…. Scientific or not
Step 1: Make an observation
Step 2: Form a hypothesis
Put it in If….Then….
Step 3: Collect data through experimentation
Step 4: Repeat

4. Experimental Design
Design an experiment to test the following observation. Garlic reduces cholesterol in lab rats.

5. Experimental Design Experimental Group – exposed to tested factor
Control Group – not exposed to tested factor
In the garlic/rat experiment what is your control group? _________________
In the garlic/rat experimental what is your experimental group?__________________

6. Experimental Design Independent variable: Dependent variable:
What you are testing
Changes in the experiment
Common: ___________
Dependent variable:
Depends on data
What you are measuring
Changes because of independent
Constants: remain the same in both experimental and control groups
Important because…

7. Types of Data Qualitative: Quantitative: Uses descriptions Pros -Cons
Uses numbers
Pros Cons

8. Setting up Graphs
Title
Name
Key