Learn with us online while the Exploratorium is temporarily closed. You can help us reopen—donate today.
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.
Science of Water: Food Explore water's crucial role in food and cooking.
Browse our growing online collection of hands-on exhibits.
Global Climate Change Explorer • Discover how researchers study climate change and examine the latest scientific data.
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
Dive into websites, activities, apps, and more.
Watch selections from the Kronos Quartet's performance at Resonance.
The only continent without any countries or government . . .
See how balls bounce using a double-layer water balloon.
Step inside San Francisco's landmark camera obscura with operator Robert Tacchetto.
There's more to polar ice than just frozen water. Learn about the many varieties of ice found at the poles and how and where they form.
Find out why biodiversity benefits plants and people alike.
Rock out to Mickey Hart celebrating the Golden Gate Bridge.
Imaginative Designs in Digital and Analog Clothing
Measure the brightness of the sun using cooking oil and a white card.
by Steve Gennrich • January 7, 2017
Peter Taylor, Exploratorium Super-Technician, talks about his outdoor installation tools.
Decorate your white walls with rainbow colors!
Hear tales of visual-effects adventure from ILM's Lorne Peterson.
Learn how to tie the six knots most useful on a voyaging canoe.
Identify misalignments in your body by looking at your feet.
Who lives in the Arctic, and how did they get there?
Learn about origami, make your own paper, and find out the best way to fold a paper airplane.
Use dominoes to model a nerve cell's transmission of a signal
Experience Strandbeest: The Dream Machines of Theo Jansen.
An ordinary metal spoon can make some astounding sounds!
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.
Darkening polar skies often bring beautiful light displays.
Meteor, meteorite, meteoroid – what's the difference?
In Observance of the 50th Anniversary of the bombing of Hiroshima and Nagasaki.
by Pearl Tesler • June 28, 2017
Cardboard gets its Amazonian strength from simple geometry.
Watch Theo Jansen prepare to release a strandbeest on the beach.
Will the "real" South Pole please stand up?
“No way! I lost a lot of cows last year!” is not something you’d expect to hear on the floor of a science museum.
What's the quietest sound you can find – and how can you find it? Download listening tips.
Study ultraviolet radiation from the sun and other sources using UV beads.
Insight into genes, reproduction, and cancer
This stuff can't make up its mind -- is it a liquid or a solid?
Journey into Chaco Canyon, where ancient people built monuments to the cosmos. Journey to Chichén Itzá, where the Maya built monuments to the sun.
Put on a mask and see how we communicate with our bodies as well as with our faces and words.
Follow the process of revitalizing the Buchanan Mall in the Western Addition.
Scientists dig under the surface for clues to past climate
Make a tool that lets you measure how tall a building is or how high a rocket flies.
A do-it-yourself cartoon kit. It's easy to make pictures move!
Enjoy the cloudscape of China's Weizi Gorge.
Do hot water and cold water mix?
Experience strandbeests, kinetic sculptures that blur the lines between art, machine, and life.
A naked egg is an egg without a shell. Using vinegar, you can dissolve the eggshell without breaking the membrane that contains the egg.
What goes on under the ground during an earthquake? Use a Slinky to model the various seismic waves that make the earth tremble.
by Mary Miller • February 1, 2018
Big wave secrets are all in the data.
Reach out and investigate the Curiosity rover's robotic arm.
Explore the science behind food and cooking with recipes, activities, and archived Webcasts.
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