PRACTICE
INTERPRETING
DATA AND GRAPHS
(VARIABLES)
1. The circle graph represents the typical day of a teenager.
a. What is the Independent Variable?
b. What is the Dependent Variable?
c. What percent of the day is spent watching TV?
d. What activity takes up the least amount of time?
e. What activity takes up a quarter of the day?
f. What two activities take up 50% of the day?
g. What two activities take up 25% of the day?
h. Create a data table for the pie chart/circle graph.
2. The line graph represents a trip by car.:
a. What is the independent variable?
b. What is the dependent variable?
c. Predict the motion of the car between hours 5 and 12.
d. How many miles were traveled in the first two hours?
e. Which line represents the fastest speed?
3. Answer these questions about the bar graph
above:
a.What variable is on the y-axis of this graph?
b. What variable is on the x-axis of this graph?
c. What is the demand when the price is 5$ per
bushel?
Atomic Number
of Elements
Ionization Energy
(volts)
2
24
4
9
6
11
8
13.5
10
21.
4. Answer these questions about the data table:
a. What is the independent variable on this table?
b. What is the dependent variable on this table?
c. How many elements are represented on the table?
d. Which element has the highest ionization energy?
e. Create a line graph using this data. (remember to use your tip
sheet – label axis, use appropriate scale, use ruler)
Years
Mass (g)
2
30
4
60
6
?
8
120
10
150
5. Answer the questions using the data table:
a. Fill in the missing information.
b. What is the independent variable?
c. What is the dependent variable?
d. What would the dependent variable be if the independent
variable was 14?
e. What type of graph would you create from this data table?
Mass (g) of Object
Force (N)
6
3
12
4.5
18
6
22
7
6. Answer the questions using the data table:
a. If the force was 5N what would the mass of the object be?
b. If the mass of the object is 30g, how much force would be
needed?
c. What type of graph would you create from this data table?
d. What is the independent variable?
e. What is the dependent variable?
Reaction Temperature in Minutes
45
40
Temperature
(Celsius)
35
30
25
20
15
10
5
0
5
10
15
20
25
7. Answer the questions using Reaction Temperatures:
a. What would be the temperature if the reaction was
continued until minute 30?
b. What should be the label on the X-axis?
c. Finish the conclusion statement: As time ____________,
temperature ____________.
Plant height per Week
16
14
Length (meters)
12
10
8
6
4
2
0
1
2
3
4
5
8. Answer the questions using Plant Height:
a. What would be the length if the height were taken of the
plant in week 6?
b. What should be the label on the X-axis?
c. Finish the conclusion statement: As time ____________, length
____________.
ANSWERS
1. The graph at the right represents
the typical day of a teenager.
Answer these questions:
a.What is the Independent Variable? Activities
b.What is the Dependent Variable? % of Each Activity
c.What percent of the day is spent watching TV? 13%
d.What activity takes up the least amount of time? Studying
e.What activity takes up a quarter of the day? Going to School
f.What two activities take up 50% of the day? Sleep & Phone
g.What two activities take up 25% of the day? Phone & Eating
h.Create a data table for the pie chart/circle graph.
ANSWERS
Answer these questions about the graph on the right:
a.What is the independent variable? Hours
b.What is the dependent variable? Miles
c.Predict the motion of the car between hours 5 and
12. Setting still
d.How many miles were traveled in the first two hours
of the trip? 20-25
e.Which line represents the fastest speed? Line D-E
ANSWERS
Answer these questions about the graph at the right:
a.What variable is on the y-axis of this graph? Quantity Demand
b.What variable is on the x-axis of this graph? Price per Bushel
a.What is the deman when the price is 5$ per bushel? $10/week
ANSWERS
Atomic Number
of Elements
Ionization
Energy
(volts)
2
24
4
9
6
11
8
13.5
10
21.
Answer these questions about the data table:
What is the independent variable on this table? Atomic # of Elements
What is the dependent variable on this table? Ionization Energy
How many elements are represented on the table? 5
Which element has the highest ionization energy? 2
Create a line graph using this data. (remember to use your tip sheet –
label axis, use appropriate scale, use ruler)
ANSWERS
Years
Mass (g)
2
30
4
60
6
?
8
120
10
150
•Fill in the missing information. 90
•What is the independent variable? Years
•What is the dependent variable? Mass
•What would the dependent variable be if the independent variable was 14? 210g
•What type of graph would you create from this data table? Line graph
ANSWERS
Mass (g) of Object
6
12
18
22
Force (N)
3
4.5
6
7
What is the independent variable? Mass of Object (g)
•What is the dependent variable? Force (N)
• If the force was 5N what would the mass of the object be? 14g
•If the mass of the object is 30g, how much force would be needed? 9N
•What type of graph would you create from this data table? Bar or line Graph
ANSWERS
Reaction Temperature in
Minutes
Temperature
(Celsius)
50
40
30
20
10
0
5
10
15
20
25
What would be the temperature if the reaction was continued
until minute 30? 45-50
What should be the label on the X-axis? Time (minutes)
Finish the conclusion statement:
As time increases__, temperature _ increases __.
ANSWERS
Plant height per Week
16
Length (meters)
14
12
10
8
6
4
2
0
1
2
3
4
5
What would be the length if the height were taken of the plant in
week 6? 17-20
What should be the label on the X-axis? Week
Finish the conclusion statement:
As time _ increases __, length _ increases __