1. Standard 1 Review: Graphs, Variables and The Scientific Method
Spiral #4
Standard 1 Review: Graphs, Variables and The Scientific Method

2. Bar Graphs
Good for comparing data
Specific #’s of specific things

3. Circle Graphs (Pie Charts)
Shows how parts relate to the whole.
Often used for percentages.
(The whole pie = 100 %)

4. Line Graphs
Used to demonstrate continuous change (ex: over a period of time)
A linear graph is a straight line (linear)
The slope of a linear graph is constant
(Y=mX + b)

5. Variables A Variable is any factors that changes
during an experiment (it varies).
The variable that causes the change is called the independent variable.
(I = I decide what’s being tested)
The dependent variable shows the effect of changes in the independent variable.
(D = Data, what is being measured or recorded)

6. Y Axis
X Axis

7. Steps of the Scientific Method
1. State The Problem
2. Form a Hypothesis
3. Perform an Experiment
4. Collect and Analyze Data
5. Form A Conclusion
6. Communicate Results