Be Smart
The Cosmic Origins of Earth's Water
Was Earth born as a Blue Planet? Discover where water came from with a video from an intriguing science playlist. The resource covers the three most likely origins of water, how scientists differentiate between comet and asteroid water,...
Fuse School
Water Cycle
Go with the flow! The first video of a seven-part series about the Earth's water resources introduces learners to the water cycle. With an emphasis on cause and effect, it presents the information simply through animation. And, with the...
TED-Ed
The Science of Snowflakes
Why are snowflakes six-sided? Why are none of them the same? Explore what is known and still unknown about these winter wonders.