1. GRAPHING

2. Materials
Ruler
Spiral: Title and Date
Graph paper with 4, quarter-paper sized graphs
Pencil

3. Y axis
X axis

4. IV vs. DV Independent variable (IV): Manipulated variable Ex: speed
Dependent variable (DV) :
Relies on the manipulated variable
Ex: time

5. DRY MIX
Dependent variable
Relies on manipulated
Y axis
Manipulated variable
Independent variable
X axis

6. Title SCALE: evenly distributed DV vs. IV DV LABELS IV DV (with units)70
DV vs. IV 60 50
DV (with units) 40
SCALE:
evenly distributed
LABELS 30 20 10 IV
1st
2nd
3rd
IV (with units)

7. TYPES OF GRAPHS
Scatter plot: we use this 95% of the time (best fit line)
Line graph: shows changes over time or space
Bar graph: compares different variables
Pie graph: useful with percentages

8. Speed of A Car 1 2 3 4 5 6 8 9 10
TIME (s)
DISTANCE (m)

9. 50 100 150 200 250 11 15 22 32 37 48 Volume vs. Temp. TEMP ( O C)50
100
150
200
250 11 15 22 32 37 48
TEMP ( O C)
VOLUME (mL)

10. 144 162 176 192 206 20 40 60 80 100 KI SOLUBILITY GRAMS DISSOLVED
TEMP ( O C)

11. O Si Al Fe Ca Mg Na K Other 45.2 27.2 8.2 5.8 5.1 2.8 2.3 1.7 Elements
Abundance of Elements in the Lithosphere O Si Al Fe Ca Mg Na K
Other
45.2
27.2
8.2
5.8
5.1
2.8
2.3
1.7
Elements %

13. Interpolate vs. Extrapolate
Interpolate: being able to “construct” data points from inside a known data set
Extrapolate: being able to “construct” data points from outside a known data set (predict)

14. Interpolate: Distance at time 2.5 s =
Extrapolate: Time at Distance 15 m = 5m
9 s
X s
6 s =
15 m
10m
X s =
0.6
15 m

15. Be sure to label IV and DV!
Create the data table!
For the next slides you will create a data table representing the given graph
Be sure to label IV and DV!

16. Frozen Dessert Production
Gallons (mil)
Dessert
Frozen Dessert Production
Regular
Low fat
Nonfat
Sherbet
Frozen Yogurt 55 27 2 3 4

17. USE THE DATA AT THE RED DOTS
Individual Water Use from
Water Use (Liters per person)
Municipal Water Use Per Person from
Year
1983
1986
1989
1992
1995
1998
2001
662
680
700
637
625
L / person

19. Sources of Radiation ExposureRn
X-ray
body
cosmic
rocks
Nuclear medicine
c.p.
n.p. 59 10 9 8 7 4 3
<0.1
sources %