Help Support the Future of PhET!

With over 95 sims (and growing!), PhET must build a network of support modeled upon NPR and PBS. And, just like their listeners and viewers who donate, you, our users, can make a difference.

Please consider donating to PhET. Gifts as small as $10, $20, or $50 help develop, maintain and support our growing library of sims.

All donations are tax deductible.

Upcoming Events:

Cyberlearning Tools for STEM Education
Berkeley, CA
March 8-9, 2011

NSTA Annual Conference
San Francisco, CA
March 10-13, 2011

ISTE 2011
Philadelphia, PA
June 26-29, 2011

ACS Fall 2011 National Meeting
Denver, CO
August 28-Sept. 1, 2011

PhET's Foray into Social Media

PhET is coming of age...at least on Facebook, Twitter and our blog.

Be the first to learn about new sims, new teacher activities, articles and newsletters. We'd also love to hear how you use PhET in your classrooms. Spread the word so PhET can go viral...

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Featured Sims:

Explore Floating and Sinking with the Density and Buoyancy Sims

Density Explore how blocks of different materials and sizes float or sink with the new Density sim. Create your own block with adjustable mass and volume, and predict when your block will start to float. Develop experiments to determine the density of mystery objects. The Density sim includes a set of great teaching ideas with pre-lab, post-lab, teaching notes and sim activities to get you started on designing your own lesson plan.

Buoyancy Learn why objects float or sink with the Buoyancy sim. Explore the key forces at work as you modify your block, drag it under the surface, or change the fluid. Use the movable scale to weight objects in and out of water, or anywhere in between.

Learn How the Periodic Table Works with Build An Atom

Build an Atom Build an atom out of protons, neutrons, and electrons with the Build An Atom sim. Learn about the mass, charge, structure, and nomenclature of elements in the periodic table. With this sim, students will learn What makes up an atom How protons are connected to element identity How neutrons affect nucleus stability How protons and electrons affect ionic charge How to describe the mass and charge of the subatomic particles

Check Out These Other New Simuations:

• Acid-Base Solutions
• Capacitor Lab
• Collision Lab
• Forces and Motion
• Gene Machine: The Lac Operon
• Gravity and Orbits
• Improved Greenhouse
• Improved Moving Man
• Molecules and Light
• Neuron
• Reactants, Products and Leftovers
• Ramp: Forces and Motion

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PhET Interactive Simulations | University of Colorado 390 UCB | Boulder, CO 80309-0390