The energy in the universe never increases or decreases -- but it does move around a lot. Energy can be potential (like a stretched-out rubber band waiting to snap) or kinetic (like the molecules that vibrate within any substance). And...

In 1989, Ebola landed on U.S. soil. After appearing in a research lab in D.C., a heroic U.S. Army scientist put her life on the line to prevent an outbreak. Inspired by true events and starring Julianna Margulies, THE HOT ZONE premieres...

Do you know anyone with freckles? Maybe you have freckles yourself! Jessi has them, and she's been wondering what they are, where they come from, and why some people have them and some people don't!

The good news is that your experimental robo-ants are a success. The bad news is that you accidentally gave them the ability to shoot deadly lasers . . . and you can't turn it off. Can you stop them from escaping their habitat before the...

How high can you count on your fingers? It seems like a question with an obvious answer. After all, most of us have ten fingers -- or to be more precise, eight fingers and two thumbs. This gives us a total of ten digits on our two hands,...

All the stars in a spiral galaxy rotate around a center -- but to astronomers, the speed that each star travels wasn't making sense. Why didn't stars slow down toward the edges as expected? Don Lincoln explains how a mysterious force...

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

This video explains how to find the angle measures and side lengths of an oblique triangle when all the side lengths are given. It introduces the law of cosines as a formula that relates the sides and angles of a triangle. The video...

More than 350 years ago, the colony of Maryland was founded in the United States by George Calvert and his son Cecil. It was the first and only colony established with religious freedom for Catholics, and was named for the wife of King...

This video explains the concept of short term memory and how it is crucial for everyday tasks. They discuss the specific brain regions involved and share an experiment that demonstrates how quickly information can be forgotten from short...

The John Lewis Christmas Advert 2013 - What would really happen?! All links to material used below.

Upon viewing the Exploring Fossils video series, students will be able to do the following: Explain that fossils are the ancient remains or traces of once-living things. Understand that fossils come in a wide range of shapes, sizes, and...

This video explains how to add integers using a number line. Review two examples, showing how to add positive and negative numbers by moving forward or backward on the number line.

Let's make the Tinker Tar a part of your elementary music lesson! The one-string Tinker Tar makes it easy for kids to learn to play melodies in your elementary music class. <br/>

Reading Lesson Poem from A Great Big Cuddle

Hey there! Looking for fun, awesome piano lessons for kids ages 6-10? Check out this video!

A conversation with Terry Fong, Senior Scientist for Autonomous Systems and Lead for the Intelligent Robotics Group at NASA’s Ames Research Center in Silicon Valley.

Retro Neon Signs: Art Lesson with Chalk Pastels