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  • Tinkering at Home

    Try this collection of prompts for tinkering at home.

  • Learning Toolbox: Engage in activities about the science of coronavirus and explore our online resources for learning at home.

  • Explore water's crucial role in food and cooking.

    Science of Water: Food   Explore water's crucial role in food and cooking.

  • Shadow Box exhibit

    Browse our growing online collection of interactive exhibits.

  • Global Climate Change Explorer • Discover how researchers study climate change and examine the latest scientific data.

  • Science Snacks

    Low-cost, teacher-tested activities for the classroom and the curious.

  • Wired Pier Environmental Field Station • Explore weather, air quality, and water conditions from San Francisco Bay

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

Dive into websites, activities, apps, and more.

I M O K. U R O K.
I M O K. U R O K.

You can make sentences without words!

Drives & Gears
Drives & Gears

What is a gear ratio? And how do gears help make the bicycle so efficient?

Blood
Blood

Learn about the body's vital defense force.

Zebrafish

A model for heart development

Oil Spot Photometer

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

Penguins
Penguins

Living along the continental coastline of Antarctica are the emperors and the Adélies.

Exploratorium at Pier 15: Green Machine

Get to know Pier 15, one of the greenest buildings around.

Science of Gardening: Control
Science of Gardening: Control

Make it grow . . . bigger, lusher, juicier.

Kosher Dill Current
Kosher Dill Current

High energy prices got you down? Discover how pickles can ease your troubles.

Baseketball
"Baseketball" A Physicist Party Trick
International Polar Years
International Polar Years

Four times over 100-plus years, major initiatives have brought together scientists from around the globe to collaboratively study the poles.

El Niño: Early Warning
El Niño: Early Warning

In September 2004, the Exploratorium covered a conference in the Galapagos Islands, organized by the National Center for Atmospheric Research, that considered the implications of El Niño forecasting.

Make Your Own Petroglyph
Make Your Own Petroglyph

Try your hand at explaining symbols both modern and ancient, and then make your own.

Cardboard Automata
Cardboard Automata

Explore mechanical elements such as cams, levers, and linkages to create your own moving sculpture.

Modulated LED: Try Our Challenge

Put your mind to tackling these classic engineering problems.

Bird Call Quiz
Bird Call Quiz

Listen to bird songs and try to figure out which are songs, which are companion calls, and which are alarms.

Vocal Visualizer: Have fun

Two Vocal Visualizers are better than one.

CANdemonium
CANdemonium

Recycle some cans to make after-dinner music!

Comet Mapping
Explore Comet 67P with the Rosetta Mission and Paul Doherty.
Going Up? Get Fit
Going Up? Get Fit

The 18,000-foot Mt. Parinacota presents some fitness challenges for climbers.

Evidence: How Do We Know What We Know?
Evidence: How Do We Know What We Know?

For most of us, science arrives in our lives packaged neatly as fact. But how did it get that way?

Special FX
Special FX

Make yourself giant or tiny with a snip of the scissors.

Black Sand

Big magnets and black sand were made for play.

Cloud Chamber

See evidence of invisible cosmic rays with Cloud Chamber.

Bicycles and Drag
Bicycles and Drag

Find out why wind resistance is a big drag for bicyclists, and use our calculator to estimate drag for yourself.

Auroras: Paintings in the Sky
Auroras: Paintings in the Sky

Far north in the night sky, a faint glow appears on the horizon. Green and red flames of light stretch across the sky.

Look Inside a Tooth
Look Inside a Tooth

Teeth are the most common fossils found. What can they tell us?

Science of Sugar
Science of Sugar

Get up close and personal with a sucrose molecule.

Goose Bumps
Goose Bumps

Music, fear, sadness all can cause goosebumps. But why?

Seasons and Alignments
Seasons and Alignments

Does the sun rise in the east? Not exactly.

Exploratorium Video

Explore our media collection

Conversion Calculator
Conversion Calculator

Use this handy conversion calculator to convert between the many units found in recipes.

Paper Bridges
Paper Bridges

Build a bridge from a piece of paper and explore ways of making it stronger.

Listening to Process Sound
Listening to Process Sound

Find out how a cochlear implant helped one man regain the ability to listen.

ColorFest
ColorFest

Check out ColorFest, a two-month extravaganza celebrating color at the museum from July 1 to September 5.

Comet Approach Maneuvers

How do you chase a comet—and how do you stop?

Experience the thrill of Strandbeest: The Dream Machines of Theo Jansen.

Total Solar Eclipse: Live From Turkey
Total Solar Eclipse: Live From Turkey

On March 29, 2006, a total solar eclipse occurred when the new moon moved directly between the sun and the earth. The moon’s shadow fell on the eastern tip of Brazil, sped eastward across the Atlantic, through northern Africa, across the Mediterranean, an

Arctic Whales
Arctic Whales

Learn about the giants of the polar seas.

Everybody Gets Lunch
Everybody Gets Lunch

Sit down for compost tea with a visionary cultivator.

Color Chromatography
Color Chromatography

Discover the secret colors hidden in black ink. With a paper towel, a black marker, and a cup of water, create a rainbow of colors while exploring capillary action and chromatography.

Total Solar Eclipse China 2008
Total Solar Eclipse China 2008

View the full eclipse visible from China in 2008.

Candy Around the World
Candy Around the World

What kinds of candy are made and enjoyed in where you live?

Swell Swell
Swell Swell

Want to understand how to predict when the good waves are coming to your shore? It helps to start with the basics behind the formation of ocean waves.

Earth's atmosphere
Global Climate Change Explorer

Discover how researchers study climate change and examine the latest scientific data.

Rolling Feet
Rolling Feet

Your worn shoe soles reveal whether your feet roll excessively from side to side as you walk.

Bubble Bomb
Bubble Bomb

Using baking soda and vinegar, you can pop a plastic bag with the power of fizz.

Indicating Electrolysis: Introduction

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

Quake Basics: Measurements
Quake Basics: Measurements

Richter and beyond

Balloon Blow-Up
Balloon Blow-Up

Not all bubbles are made with soap!

Geiger Counter
Geiger Counter

What does it take to block gamma radiation?

“I'm Alright, Jack, Keep Your Hands Off My Stack”

Consider decision-making for an aging population and its implications.

Viewing the Stereographs
Viewing the Stereographs

About Anaglyphs. How do I make 3-D glasses?

Aurora
Aurora

Darkening polar skies often bring beautiful light displays.

Plate Tectonics
Plate Tectonics

See a map of recent earthquakes in the United States, and learn why earthquakes happen so frequently on the West Coast.

Long Now Rosetta Project
Discover how we shot 1,500 languages into space.
Build a Solar System
Build a Solar System

Make a scale model of the Solar System and learn the REAL definition of "space."

Why Save Seeds?
Why Save Seeds?

Find out why biodiversity benefits plants and people alike.

Luccichío
Luccichío

I movimenti dei tuoi occhi faranno brillare questo disegno.

Indicating Electrolysis: Going further

Add a magnet to your solution and see what happens.

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