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How do astronauts survive the deadly radiation of deep space? NASA is still figuring out how to protect astronauts from cosmic radiation using plastic shielding and magnetic deflectors. Credit: Reactions/American Chemical Society

This animation explains the Doppler shift and shows how the movement of a sound source relative to a listener raises or lowers the pitch.

This animation shows how currents of molten iron in the Earth's outer core generate the planet's magnetic field.

This animation shows how earthquakes radiate from focus points on fault lines.

This animation explains echoes and shows how echoes occur when soundwaves bounce off objects.

This animation shows how the El Niño weather pattern arises from changes in atmospheric and oceanic flows.

From the dinner table to the human body, crystals are everywhere. This video highlights five scientific facts about this ubiquitous solid. [Credit: Reactions/American Chemical Society (www.youtube.com/acsreactions)]

We all want to be healthy, but some food myths can actually get in the way of good nutritional decisions. This video shatters one food myth that you may have heard: microwaving your food zaps its nutritional value. Watch to find out why that…

This animation shows how volcanic islands form over hot spots arising from deep within Earth's mantle.

Battered and deep-fried chicken might be one of the world's most delicious foods. But what makes fried chicken so tasty? It all comes down to the chemistry of frying. In the video, learn how the delicate dance of fat at high temperatures…