1. Graphing
A. A graph is a visual representation of the relationship between two variables.
  1. The two variables are:
  a. Independent Variable = The variable that YOU control in an experiment. It always goes on the
  b. Dependent Variable = The variable that DEPENDS ON the independent variable. It always goes on the
x axis.
y axis.

2. I d Independent Variable (on the x-axis) Dependent Variable
(on the y-axis) I d

4. B. The x and y axes must be set up with equal intervals!!!!
(always count by the same interval and skip the same number of boxes along that axis.)

5. Ex: “Independent” vs. “Dependent”
Title
Ex: “Independent” vs. “Dependent”
Ex: The Effect of “Independent” on “Dependent”
Place circles around dots and connect
Label axes (include units)

6. C. Stating the relationship between 2 variables:
“As ________________ increases, ____________ increases/decreases/remains the same.”
the independent variable
the dependent variable
1. DIRECT RELATIONSHIP = Both variables increase OR both variables decrease.
2. INDIRECT RELATIONSHIP = One variable increases and
the other variable decreases.

7.  
3. CYCLIC RELATIONSHIP = The dependent variable increases and decreases in a repeating, predictable pattern over time.
4. STATIC RELATIONSHIP = One variable remains the same, while the other variable increases.

8. Plant Growth Rate from Day 2 to Day 5:
D. Rate of Change:
 1. How quickly something occurs or changes in a given amount of time.
2. Formula
Rate =Change in Field Value OR Change in Y
Time Change in X
3. Example:
Plant Growth Rate from Day 2 to Day 5:
8 cm – 2 cm = 6 cm =
Day 5 – Day days
2 cm/day

9. 4. Steeper Lines (slopes of lines) indicate a greater rate of change (i.e. faster)