INTRODUCTION
SCIENTIFIC INQUIRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
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heart rate
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type of exercise
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amount of exercise
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time of day exercise occurs
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Explanation:
Detailed explanation-1: -In this experiment, the addition of fertilizer is the independent variable manipulated by the scientist. Plant height is the dependent variable that responds to the change in the independent variable. Each plant is exposed to an equal amount of sunlight, so sunlight is the control variable.
Detailed explanation-2: -When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer? Independent.
There is 1 question to complete.