Search Results

In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

This quiz lets you estimate your annual radiation exposure.

Get a roll of pennies, throw them on the ground, then remove those that only show tails, and repeat with the ones left over.

In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.

In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool.