PhET: Traffic Control: How Cells Manage Molecular Movement
Details
Author:
Tina Titus | ttitus@windham.k12.ct.us
Main Website:
Activity Website:
Tech Product/Equipment:
Computer and projector, Mobile devices for students
Activity Description
Students investigate how substances move into and out of cells using the PhET interactive activity Traffic Control: How Cells Manage Molecular Movement. Through exploration, students learn how cell membranes regulate movement, compare passive and active transport, and explain the roles of diffusion and osmosis in maintaining homeostasis. Students work collaboratively to manipulate the simulation, collect observations, and share findings with classmates.
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Preparation
- Check the website to ensure it is not blocked at your site.
- Read through the lesson plan.
- Print and make copies of any handouts.
- Request an educator account
Teacher Tips
- Allow students time to freely explore before beginning structured tasks.
- Encourage students to make predictions before changing variables.
- Pause periodically for whole-class discussions.
- Use a graphic organizer to record observations.
- Connect transport concepts to healthcare, nutrition, and human body systems.
More Ways
- Compare plant and animal cells.
- Investigate how dehydration affects cells.
- Explore diseases that affect membrane transport.
- Research the role of diffusion in the respiratory system.
- Create a model showing active and passive transport.
Program Areas
- ASE: High School Diploma
