Practice - The Importance of Variables in an Experiment
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is an independent variable? Give an example.
💡 Hint: Think about what you might change in an experiment.
Define a control group.
💡 Hint: What group do we compare the experiment group to?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the independent variable in an experiment?
💡 Hint: Think about what you wish to find out by changing something.
True or False: Control groups receive the experimental treatment.
💡 Hint: Consider the purpose of having a control.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Design a comprehensive experiment to measure the effect of different types of soil on the growth of a sunflower. Identify all variable types and explain the significance of the control group.
💡 Hint: Think about what factors might affect the plant's growth and how to measure them!
You want to test whether students study better in silence or with background music. Create a hypothesis and break down the independent, dependent, and controlled variables.
💡 Hint: What factors can remain unchanged, and which will you actively change?
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.