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SERAI ROBIN - Variables Worksheet Part 2 ☆
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Part 2
Questions #4-7 refer to this experiment:
Suzie Q wants to know how different colors of light affect the growth of plants. She believes that plants
can survive the best in white light. She buys 5 ferns of the same species, which are all approximately the
same age and height. She places one in white light, one in blue light, one in green light, one in red light
and one in the closet. All of the ferns are planted in Miracle-Grow and given 20 mL of water once a day
for 2 weeks. After the two weeks, Suzie observes the plants and measurements.
4. What measurements could Suzy make to determine how different colors of light affect the growth of
plants?
5. What is the independent variable?
6. What is the dependent variable?
7. What are the control variables?