Quiz #2: Designing Controlled Experiments
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Which of the following does NOT describe a controlled experiment?
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What is an independent variable?
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A scientist performs a controlled experiment to determine how changing the amount of air in a basketball (10 pumps, 20 pumps, 30 pumps) affects how high it bounces. What is the independent variable in this experiment?
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A scientist performs a controlled experiment to determine how changing the surface a basketball is bounced on (wood, concrete, tile) affects how high it bounces. What is the dependent variable in this experiment?
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Which of the following is NOT a testable question format?
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Which parts of a controlled experiment must be in every testable question?
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What does NOT describe a hypothesis?
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What is the proper format for writing a hypothesis?
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True or False: Ms. Shon should be able to repeat your experimental procedure and get the exact same results.
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What is the major advantage of secondary research investigations?
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Bonus (OPTIONAL - NO POINTS TAKEN OFF IF INCORRECT): How does designing and performing a controlled investigation help us to develop a "scientific explanation"?
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