PhET Blog

We’ve added yet another HTML5 simulation: Friction.

Learn how friction causes a material to heat up and melt. Rub two objects together and they heat up. When one reaches the melting temperature, particles break free as the material melts away.

Want more HTML5 simulations? Help bring Circuit Construction Kit to iPad.

http://www.crowdrise.com/PhETHTML5CCKSimulation

Try the newest HTML5 simulation addition: ph Scale: Basic. Based on the JAVA pH Scale, the new HTML pH Scale: Basics  opens up the world of acids and bases to middle school students.

Test the pH of things like chicken soup, hand soap, blood, spit and soda. Investigate whether changing the volume or diluting with water affects the pH.

Want more HTML5 simulations? Help bring Circuit Construction Kit to iPad.

http://www.crowdrise.com/PhETHTML5CCKSimulation

Thank you PI, a manufacturer of precision motion systems, for becoming a corporate sponsor of Optical Tweezers and Applications.  Your support will help PhET upgrade our servers to the latest technology and keep the simulations free for students around the world.

If you’d like to join PI and become a sponsor, please consider supporting PhET in your annual year-end donations. Every donation helps! Together we can improve the way science and math are learned. Choose:

• Bringing Circuit Construction Kit to iPads
• Building the “Teach with PhET” website

Try the new HTML5 iPad-compatible Forces and Motion: Basics simulation. Explore the forces at work in a tug of war or pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the motion of objects.

Like our tablet-compatible simulations? Support bringing Circuit Construction Kit to iPads: http://www.crowdrise.com/PhETHTML5CCKSimulation

Or support building the “Teach with PhET” website: http://www.crowdrise.com/helpbuildteachwithphet

Every donation helps! Together we can improve the way science and math are learned.

Try the newly published tablet-compatible John Travoltage simulation.

Make sparks fly with John Travoltage. Wiggle Johnnie’s foot and he picks up charges from the carpet. Bring his hand close to the door knob and get rid of the excess charge.

We’re excited to present the HTML5 version of Build an Atom. Now with your fingers, you can build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!

Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals and find out how concentrated you can go before you hit saturation!

We’re excited about our new grant proposal that we submitted to the Dept. of Education on building and studying math simulations, specifically for middle school. The funding would significantly expand our offering math offerings so keep your fingers crossed!

Have you tried our new HTML5 version of Balloons and Static Electricity?

Why does a balloon stick to your sweater? Rub a balloon on a sweater, then let go of the balloon and it flies over and sticks to the sweater. View the charges in the sweater, balloons, and the wall.

Try the new next-gen version of our popular Gravity Force Lab — now for touch and tablets! With a touch of your finger, experience how the gravitational force that two objects exert on each other changes as you alter their properties. What happens as you increase the mass of the objects? What happens as you move them farther apart?