Ask & Experiment

Ask & Experiment has experiments for you to try at home, activity books to download, PhysicsQuest resources for your school or after school group, and a way you can get your physics questions answered by real physicists.


PhysicsQuest, a free competition for 6-9th grade students and after school groups, consisting of four science experiments that give students clues to solve a mystery. Classes can submit their answers online and be entered in a random drawing for prizes. PhysicsQuest kits are free to registered classrooms and groups. 

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Where's the Air?

You can't see it, but you can feel it! Play with air and air pressure in this activity.

balloon bottle

Balloon Bottle

It’s like making a teeny tiny hot air balloon that doesn’t go anywhere!

tennis I can't understand the instruction stated on my tennis racquet about the relation between string tension and string power. It says "higher tension for more control and less power and vice versa". How can it happen? – AT, Hong Kong
Find out the answer »

Activity Books


spectra10-home    Spectra    Spectra 2     Tesla    Color Me Physics    Color Me Physics