1. Aim: Graphing Your Data
Enter Date
Aim: Graphing Your Data
Warm-up:
How much water should be removed from the graduated cylinder leave 5 mL of water in the cylinder?
HW:

2. Types of Data (information)
Variable:
what you measure in an experiment
A) INDEPENDENT VARIABLE
- manipulated variable
- Predictable change: I change it factor
- X-axis
B) DEPENDENT VARIABLE
- measured variable
- Unpredictable change: What gets changed
- Y-axis

3. How does fertilizer affect the growth rate of plants?
Example Experiment #1
How does fertilizer affect the growth rate of plants?
We set up an experiment testing different amts of fertilizer on different plants & measuring the growth (height) of the plants:
Amount of fertilizer
Independent: ________________
Height of plants
Dependent: ________________

4. How does exercise affect heart rate of 10th grade students?
Example Experiment #2
How does exercise affect heart rate of 10th grade students?
We set up an experiment testing different lengths of time of exercise (minutes) on the heart rate of students:
Minutes of exercise
Independent: ________________
Heart rate
Dependent: ________________

5. What’s the favorite drink of students?
Example Experiment #3
What’s the favorite drink of students?
We set up an experiment surveying students & asking which is their favorite drink:
Type of Drink
Independent: ________________
Number of Students
Dependent: ________________

6. Making pictures out of DATA
LINE GRAPHS
-Graphing data that shows continuous change
BAR GRAPHS (or histograms)
-Graphing data that is not directly connected

7. 18 1200 Temperature Elevation Elevation (ft above level) Temp (°C) 3030
500 25
1000 20
1500 15
2000 10
2500 5 18
Temperature
1200
Elevation

8. Drink
Number
Coke 1
Pepsi
Water 4
Iced tea
Gatorade 3

9. 6 Steps to Making PERFECT LINE GRAPH
1. Identify the Independent & Dependent Variables
DEPENDENT
INDEPENDENT

10. The growth of humans by their age.
2. Label axes with UNITS
The growth of humans by their age.
(INCHES)
GROWTH
AGES
(YEARS)

11. -Numbers must be EVENLY SPACED
3. Determine the Scale of Graph
-Numbers must be EVENLY SPACED

12. 4. S P R E A D out data

13. Temperature (°C) Depth (meters)
5. DO NOT CONNECT to ZERO, ZERO unless on data table
Depth (meters)
Temperature (°C)
Depth (meters) 5 10 20 15 30 35 25 40
Temperature (°C)

14. How does fertilizer affects height of plants?
6. TITLE
Question or statement that describes the experiment
How does fertilizer affects height of plants?
Height
Fertilizer

15. NEVER USE VS

16. The Temperature of the water as you increase in depth
Temperature (C)
Depth (meters)