Experimental design: What do you know?

What is the first step in the scientific method?

• Formulating a hypothesis

• Conducting an experiment

• Making an observation

• Analyzing data

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DOK Level 1: Recall

Which of the following is an example of a dependent variable?

• The amount of sunlight a plant receives

• The growth rate of a plant

• The type of soil used

• The temperature of the environment

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DOK Level 1: Recall

What type of variable is kept constant throughout an experiment?

• Independent variable

• Dependent variable

• Controlled variable

• Random variable

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DOK Level 1: Recall

What is the purpose of formulating a hypothesis in the scientific method?

• To collect data

• To make an educated guess that can be tested

• To analyze results

• To draw conclusions

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DOK Level 1: Recall

Which of the following questions is testable?

• What is the meaning of life?

• How does the amount of water affect plant growth?

• Why is the sky blue?

• What is the best movie ever made?

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DOK Level 2: Skill/Concept

In an experiment, what is the role of the independent variable?

• It is the variable that is measured

• It is the variable that is kept constant

• It is the variable that is changed or manipulated

• It is the variable that is used for comparison

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DOK Level 1: Recall

What is the main purpose of analyzing experimental results?

• To collect data

• To test the hypothesis

• To draw conclusions based on the data

• To formulate a new hypothesis

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DOK Level 1: Recall

Which of the following is an example of a controlled variable in an experiment testing the effect of light on plant growth?

• The amount of light

• The type of plant

• The growth rate of the plant

• The amount of water

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DOK Level 2: Skill/Concept

What is the correct order of the scientific method steps?

• Observation, Hypothesis, Experiment, Data Collection, Conclusion

• Hypothesis, Observation, Experiment, Data Collection, Conclusion

• Experiment, Observation, Hypothesis, Data Collection, Conclusion

• Data Collection, Observation, Hypothesis, Experiment, Conclusion

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DOK Level 1: Recall

Which of the following best describes a hypothesis?

• A proven fact

• A testable prediction

• A random guess

• An unchangeable statement

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DOK Level 1: Recall