Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
|Insert channels in a membrane and see what happens. See how different types of channels allow particles to move through the membrane.|
- Membrane Channels
- Cell Membrane
Sample Learning Goals
- Predict when particles will move through the membrane and when they will not.
- Identify which particle type will diffuse depending on which type of channels are present.
- Predict the rate of diffusion based on the number and type of channels present.
Tips for Teachers
The teacher's guide (pdf) contains tips created by the PhET team.
You can submit your own ideas and activities.
Sun Java 1.5.0_15 or later
OS 10.5 or later
Sun Java 1.5.0_19 or later
|Sun Java 1.5.0_15 or later|
|Design Team||Third-party Libraries||Thanks To|
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