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Subject: Mathematics

Science activity that demonstrates the angle of repose
Avalanche

Find order in well-mixed chaos.

Science activity that experiments with rocket designs and a PVC launcher
Bottle Blast Off

Ready for liftoff? Launch rockets with your own launcher!

Science activity demonstrating paths of light reflection
Corner Reflector

See yourself as others see you.

Science activity that demonstrates the critical angle phenomenon
Critical Angle

Discover why your favorite cat videos don't leak out of optical fibers.

Science activity to demonstrate pi using circumference and string
Cutting Pi

String and scissors are all you need to find pi all around you.

Cylindrical Mirror

See yourself as others see you in this cylindrical mirror.

Science activity that demonstrates the Doppler effect
Doppler Effect

The Doppler effect causes the “neeeeeoowwm” sound of cars.

Science activity that demonstrates reflections in a kaleidoscope
Duck Into Kaleidoscope

Make multiple images of yourself.

Science activity that explores the relative sizes of the earth and moon and the distances between them
Earth and Moon

Create a scale model of the earth-moon system using different-sized spheres.

Science activity that demonstrates calculating the acceleration of gravity using simple materials
Falling for Gravity

“g,” that’s interesting! Investigating gravity.

Science activity creating music with gravity
Falling Rhythm

Listen to the rhythm of falling weights.

Science activity that explores fractal patterns and how they’re formed
Fractal Patterns

Make dendritic diversions and bodacious branches.

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Attribution: Exploratorium Teacher Institute