How Does Altitude Relate To Density?

Explore the concept of relativity and how it is related to light. An episode of the Crash Course physics series teaches learners the basics of special relativity. The narrator explains two postulates of relativity and gives scholars...

Galileo established relativity, and Einstein developed the laws of special relativity to more fully explain physics. A brief video explains how special relativity relates to electromagnetism. Through simple illustrations, complex...

The human immune system doesn't always prevent us from getting sick, so what is it doing? Young scientists watch a short video explaining what the immune system is and how it works. Then, they answer eight questions to prepare for an...

Address the question that physics learners are burning to know the answer to: How does an atom-smashing particle accelerator work? The LHC or Large Hadron Collider is introduced as a tool for uncovering the mysterious rules that govern...

When your smartphone tells you the weather of your current location or gives you directions to the nearest gas station, there's more going on that you might realize. Follow along with this short video as it explains how satellites,...

Cancer's ability to quickly spread from one organ to the next makes it one of the most fatal diseases in recent history. Watch as this short video takes you on a trip into the microscopic world of cancer cells, exploring the different...

Feeling hungry after skipping breakfast? Here's why! Introduce young scientists to that feeling of fullness with an engaging video. Use the included assessment and extension materials to further study which foods make us feel the...

Curiosity is the desire to learn or know, and it is also the name of the rover that landed on Mars in 2012. Mohawk-sporting Bobak Ferdowsi, a NASA engineer also discusses how and why we study Mars. He provides facts about the rover and...

What makes a clock tick or a bulb light up? The concept of work is explained to a backdrop of clever animation. Physics fans learn that the amount of work equals the product of the force and distance, and that the rate equals the amount...

Studying spiral galaxies can make your head spin! With this video, find out how astronomers calculate a galaxy's rotational speed, and how the prediction that the outermost stars slow down does not seem to be true. The mystery may be...