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Which Languages Are Related?
Examine words from different languages and determine which two languages are the most closely related.
Do Your Own Dissection
Download a PDF file with step-by-step instructions for doing your own cow's eye dissection.
Cow's Eye Dissection
Find out how your eyes work and watch a real dissection of a cow's eye.
The Great Shake: San Francisco 1906
San Francisco was born in gold dust, and nearly died in rubble and ashes.
Since 1906
The 1906 earthquake jolted geologists into focusing on how and why faults break loose.
Plate Tectonics
See a map of recent earthquakes in the United States, and learn why earthquakes happen so frequently on the West Coast.
Liquefaction
What happens to sandy or fine-grained soils when an earthquake shakes them up? Try this simple activity to find out.
Building for the Big One
The three most densely populated cities on the planet where seismologists expect major earthquakes are San Francisco, Tokyo, and Istanbul. Find out why the effects in each city will be very different.
The Amazing Adaptable Frog
A comprehensive tour through the weird and wonderful world of frogs.
Highway Seismograph
How good is your friend's driving? You be the seismometer, and find out whether your pal is a smooth sailor or a mover and shaker.
Seismic Science: Damage Control
We can't predict when an earthquake will occur, but we can avoid some potential disasters.
Seismic Slinky
What goes on under the ground during an earthquake? Use a Slinky to model the various seismic waves that make the earth tremble.
Retrofitting
In an earthquake, some older structures collapse and others stand tall. The difference is usually retrofitting.
Vocal Vowels
Hear vocal tract models transform the squawk of a duck call into vowel sounds.
Can You Find the Highest Note?
Three auditory illusions created by students from the Center for Electronic Art.
Bronx Cheer Bulb
Your CRT screen may appear to wiggle when you give it the raspberry, but the only thing wiggling is you.
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