Scientific Method Quiz

Which of the following best describes a hypothesis in the scientific method?

• A detailed procedure for an experiment

• A testable prediction about the outcome of an experiment

• A summary of the results of an experiment

• A list of materials needed for an experiment

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DOK Level 2: Skill/Concept

In an experiment to test the effect of sunlight on plant growth, which of the following is the independent variable?

• The amount of water given to the plants

• The type of soil used

• The amount of sunlight the plants receive

• The height of the plants

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DOK Level 2: Skill/Concept

What is the purpose of a control group in an experiment?

• To provide a standard for comparison

• To test multiple variables at once

• To ensure the experiment is conducted safely

• To increase the sample size

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DOK Level 2: Skill/Concept

Which of the following statements is a hypothesis?

• Plants need water to grow.

• If plants are given more sunlight, then they will grow taller.

• The experiment will use three different types of soil.

• The results of the experiment will be recorded in a table.

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DOK Level 2: Skill/Concept

In an experiment, what is the dependent variable?

• The variable that is changed or controlled

• The variable that is measured or observed

• The variable that remains constant

• The variable that is not included in the experiment

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DOK Level 2: Skill/Concept

Why is it important to identify variables in an experiment?

• To ensure the experiment is ethical

• To determine the cause and effect relationship

• To make the experiment more complex

• To reduce the number of trials needed

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DOK Level 2: Skill/Concept

Which of the following is an example of a control group in an experiment testing a new drug?

• A group that receives the new drug

• A group that receives a placebo

• A group that receives a different drug

• A group that receives no treatment at all

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DOK Level 2: Skill/Concept

What should be done if the results of an experiment do not support the hypothesis?

• Discard the results and start over

• Change the hypothesis to match the results

• Analyze the data to understand why the hypothesis was not supported

• Ignore the results and publish the hypothesis

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DOK Level 2: Skill/Concept

In an experiment to test the effect of temperature on the solubility of a substance, what would be the dependent variable?

• The temperature of the solution

• The amount of substance added

• The solubility of the substance

• The type of substance used

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DOK Level 2: Skill/Concept

Which of the following best describes the conclusion of an experiment?

• A detailed list of materials used

• A summary of the procedure followed

• An analysis of the data and whether it supports the hypothesis

• A description of the control group

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DOK Level 2: Skill/Concept