Scientific Method
Which axis is the vertical axis? (goes up and down)
The Y axis
On which axis do you put the Independent Variable?
On the X axis
What kind of graph would you us make to show how a variable changes over time?
A line graph
This is the variable that you manipulate during an experiment
Independent Variable
Why do scientists use graphs?
To organize, analyze and communicate findings and data
What could you conclude from this graph?
Corn yield in the US has increase over time.