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...

The liquids did not mix — so what do density columns have to do with it? The seventh part in a series of nine provides the theoretical explanation of why density columns do not mix. The lesson covers the topics related to mixing and...

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...

What triggers asthma? What are the symptoms of an asthma attack? Watch a video that explains how asthma affects the respiratory system and the extra work the lungs have to do when a person is undergoing an asthma attack.

Do you often go to bed and wake up around the same time? Does your stomach begin to growl at the same time before eating lunch? This pattern is known as a circadian rhythm. Watch a video that explains the physiological phenomenon and how...

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...