Practice Designing Experiments: Variables, Controls, Reliability, Validity - 1 | Scientific Investigation Skills | IB MYP Grade 12 Biology
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define a research question.

💡 Hint: What question drives your experiment?

Question 2

Easy

What is the independent variable in the light intensity experiment?

💡 Hint: What are you changing in the experiment?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the purpose of a research question in an experiment?

  • To summarize results
  • To guide investigation
  • To state a conclusion

💡 Hint: What question helps you determine your experiment's aim?

Question 2

True or False: The dependent variable is what we manipulate in an experiment.

  • True
  • False

💡 Hint: Remember which variable you change.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a comprehensive experiment to investigate the effects of different soil types on plant growth. Identify the independent, dependent, and controlled variables.

💡 Hint: Consider how you will keep all but one factor the same.

Question 2

Critique an experiment where a student tests the effect of temperature on enzyme activity but doesn't control the pH. What implications does this have on the validity of the results?

💡 Hint: Think about how different factors interact in biological systems.

Challenge and get performance evaluation