Variables in Experiments and Investigations 800L_Assessment_1
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Variables in Experiments and Investigations
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Question 1 of 4
1. Question
- Using context clues, what is meant by sweet spot in the sentence, “Andrew knows by the sound and feel of the bat that he has hit the ball well. He knows instinctively that the ball has connected with the sweet spot of the bat”?
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Question 2 of 4
2. Question
- What is the variable whose data is being measured in an experiment called?
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Question 3 of 4
3. Question
- In an experiment, the one variable that is changed is called the
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Question 4 of 4
4. Question
- Fill in the blank:
- The ecologist set up an (investigation) to study the behavior of red ants in their natural habitat.
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The ecologist set up an {[investigation]} to study the behavior of red ants in their natural habitat.
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Question 5 of 4
5. Question
- Why is it important for scientists to control variables? What is the difference between a manipulated variable and an outcome variable?
It is important for scientists to control variables so that they can analyze the data based on the one variable changed and see if it answered the question they were trying to answer. If they did not get the results expected, they will decide on what new variable to change and conduct the same procedure to see if that will help answer the question. Outcomes do not always come out as expected and also leads to new questions.
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