Identifying variablespractice worksheet
Created by Heather Horstmann
Identifying Variables Practice
Name: _________________
Block: ________
Define the following vocab :
Independent VariableDependent VariableConstantsDirections:
Circle the Independent Variable. Underline the Dependent Variable.
1.
The temperature of the water was measured at different depths of a lake.
2. The number of pigs in a litter is determined by the weight of the mother pig.
3. An investigation was done to determine if the amount of sugar given to a plant affected the amount of time it
bloomed.
Identify the independent and dependent variables.
4. Student in a science class carried out an investigation in which a flashlight was pointed at a screen. They wished
to find out if the distance from the light to the screen had any effect on the size of the illuminated area.
IV:______________________________________________________________________
DV: _____________________________________________________________________
5. The State Agriculture Department has been counting the number of foxes. Will the number of foxes have any
effect on the rabbit population?
IV:______________________________________________________________________
DV: _____________________________________________________________________
6. The score of the final test depends on the number of skills attained?
IV:______________________________________________________________________
DV: _____________________________________________________________________
7. Five groups of rats are fed identical diets except for the amount of Vitamin A that they are given. Each group
gets a different amount. After three weeks, the rats are weighed to see if the amount of Vitamin A affected
their weight.
IV:______________________________________________________________________
DV: _____________________________________________________________________
8. An experiment was done to see if increasing the amount of calcium chloride changes the temperature of water.
IV:______________________________________________________________________
DV: _____________________________________________________________________
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Created by Heather Horstmann (H2Bio). Copyrighted July 2015.
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