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Variables And Graphing
Test Description: Identify the independent and dependent variables for an experiment. Identify which type of graph to use.
Instructions: Answer all questions to get your test result.
1) You water 3 sunflower plants with different amounts of salt water solution. After 2 weeks the height of each plant is measured. What is the independent variable?
A
plant height
B
salt water solutions
C
3 sunflower plants
2) You water 3 sunflower plants with different amounts of salt water solution. After 2 weeks the height of each plant is measured. What is the dependent variable?
A
3 sunflower plants
B
plant height
C
salt water solutions
3) 3 redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. Height of trees is measured every week. What is the independent variable?
A
humidity levels
B
tree height
C
12 redwood trees
4) 3 redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. Height of trees is measured every week. What is the dependent variable?
A
12 redwood trees
B
humidity levels
C
tree height
5) 1 tank of gold fish is fed a normal amount of food once per day. A 2nd tank is fed 2 times per day, and a 3rd tank four times per day during a 6 week study. The fish's weight is recorded daily. What is the independent variable?
A
number of times fish are fed
B
fish's weight
C
Fish tank
6) 1 tank of gold fish is fed a normal amount of food once per day. A 2nd tank is fed 2 times per day, and a 3rd tank four times per day during a 6 week study. The fish's weight is recorded daily. What is the dependent variable?
A
number of times fish are fed
B
Fish tank
C
fish's weight
7) You want to test which soccer ball is easiest to juggle with your feet. You test a size 3, 4, and 5 ball. You count the seconds the ball stays in the air for each of the trials. You can juggle the ball with your feet, knees and head. What is the IV?
A
The independent variable (IV) is the parts of the body used to juggle.
B
The independent variable (IV) is the time the ball is in the air and being juggled.
C
The independent variable (IV) is the size of the soccer ball.
8) You want to test which soccer ball is easiest to juggle with your feet. You test a size 3, 4, and 5 ball. You count the seconds the ball stays in the air for each of the trials. You can juggle the ball with your feet, knees and head. What is the DV?
A
The dependent variable (DV) is the time the ball is in the air and being juggled.
B
The dependent variable (DV) is the size of the soccer ball.
C
The dependent variable (DV) is the parts of the body used to juggle
9) On which axis is the dependent variable placed?
A
x
B
y
C
both
10) On which axis is the independent variable placed?
A
y
B
x
C
both
*select an answer for all questions
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