exploratorium

Explore, Play, Discover: Websites, Activities, and More

Dive into websites, activities, apps, and more.

Pi Day
Pi Day

Activities and History
Impressions of Life Sciences at the Exploratorium

Take an impressionistic journey through the Exploratorium's Life Sciences area.

Sound Uncovered App
Sound Uncovered App

Explore the surprising side of sound

Arctic Seals
Arctic Seals

These unique – and uniquely beautiful – seal species spend their lives amid the sea ice

Surf Forecast
Surf Forecast

Use live data to make your own wave predictions, wherever you are.

Flat Lens
Flat Lens

A drop of water makes a fine magnifying lens.
Indicating Electrolysis: Introduction

Break water into hydrogen and oxygen using a homemade electrolysis device. 

Video: “Eclipse Chasers”
Video: “Eclipse Chasers”
Oil Spot Photometer

Measure the brightness of the sun using cooking oil and a white card.

Glitter Globe
Glitter Globe

Make a fantastic toy that shimmers when you shake it.

Stem Cells
Stem Cells

See living stem cells and find out why they are the "stem" from which all other cells develop.

Better Hair through Chemistry
Better Hair through Chemistry

Learn the science behind bad hair days, and learn how hair increases its length when humidity increases, making curly hair frizz and straight hair go limp.

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