Exploring Living Things and Science

Which of the following is a characteristic of all living things?

• Ability to move

• Growth and development

• Presence of a nervous system

• Ability to produce sound

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DOK Level 2: Skill/Concept

What is the primary purpose of the scientific method?

• To prove hypotheses correct

• To systematically investigate phenomena

• To record data

• To publish scientific papers

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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 manipulated

• It is the variable that is dependent on others

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DOK Level 2: Skill/Concept

Which of the following best describes quantitative data?

• Data that is descriptive and subjective

• Data that is numerical and measurable

• Data that is based on opinions

• Data that is collected through interviews

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DOK Level 2: Skill/Concept

A scientist wants to test the effect of sunlight on plant growth. What would be the dependent variable in this experiment?

• Amount of sunlight

• Type of plant

• Growth of the plant

• Soil type

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DOK Level 2: Skill/Concept

Which of the following scenarios best illustrates the use of qualitative data?

• Measuring the height of a plant in centimeters

• Recording the color change of a solution

• Counting the number of leaves on a tree

• Weighing a sample on a scale

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DOK Level 2: Skill/Concept

How does the scientific method ensure the reliability of scientific research?

• By allowing researchers to publish their findings

• By providing a structured approach to inquiry

• By ensuring all experiments have the same outcome

• By eliminating the need for peer review

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DOK Level 3: Strategic Thinking

A researcher is testing the effect of temperature on the solubility of a substance. What should the researcher do to ensure the experiment is valid?

• Change multiple variables at once

• Keep all variables constant except temperature

• Use different substances for each trial

• Record data only when results match expectations

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DOK Level 3: Strategic Thinking

Why is it important to have a control group in an experiment?

• To increase the sample size

• To provide a baseline for comparison

• To ensure the experiment is ethical

• To test multiple variables simultaneously

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DOK Level 3: Strategic Thinking

In a study examining the effect of fertilizer on plant growth, what would be an appropriate control?

• Plants with double the amount of fertilizer

• Plants with no fertilizer

• Plants with a different type of fertilizer

• Plants with half the amount of fertilizer

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DOK Level 3: Strategic Thinking