Crash Course
Telescopes
According to the video, astronomy is like a jigsaw puzzle with an infinite number of pieces. The video explains the history and invention of telescopes, how they work, refraction versus reflection, and the changing technology. It...
Crash Course
Eclipses
In the distant future, the moon will be so far away that there will no longer be any total eclipses. The video explains both lunar and solar eclipses, the moon's orbit, and the size of Earth and the moon. It highlights new vocabulary...
Crash Course
Moon Phases
The moon is up at night the same amount of time it is up during the day. The video discusses why the moon has phases, how even ancient people knew it was a sphere, and each moon phase. It focuses on each moon phase individually, not only...
Crash Course
Naked Eye Observations
For thousands of years, humans observed the night sky without the help of a telescope. The video explains the many amazing discoveries they made and how we still rely on them today. It details the constellations, various colors of the...
National Academies of Sciences, Engineering, and Medicine
Natural Cycles—Climate Change, Lines of Evidence: Chapter 7
The most common argument against human-caused climate change is the natural cycle of our earth. The last video in the series of seven addresses this belief. It combines collected data with advanced models to determine which factors...
National Academies of Sciences, Engineering, and Medicine
Solar Influence—Climate Change, Lines of Evidence: Chapter 6
Have scientists considered that the sun heating up might be a cause of global warming? The sixth of seven videos on the factors that affect the climate explains and tests this theory. It includes data collected from satellites, weather...
National Academies of Sciences, Engineering, and Medicine
How Much Warming?—Climate Change, Lines of Evidence: Chapter 5
In the past century, the global temperature has climbed 10 times faster than the average rate of Ice Age recovery warming. The fifth video in a series of seven on factors that affect climate change discusses just how much global...
National Academies of Sciences, Engineering, and Medicine
Increased Emissions—Climate Change, Lines of Evidence: Chapter 4
Earth naturally creates carbon dioxide, so how do we know the atmospheric increase is related to humans? The fourth video in a seven-part series explains the evidence that points to humans as a reason for this increase. The factors that...
National Academies of Sciences, Engineering, and Medicine
Greenhouse Gases—Climate Change, Lines of Evidence: Chapter 3
Greenhouse gases prevent the earth from freezing over, so how do they cause global warming? The third installment in a seven-part series explains what greenhouse gases are, how they help us, and why they are important. It links an...
Be Smart
How Bees Can See the Invisible
What do bees use to get rid of tangles? A honey-comb! The video focuses on how bees instinctively find flowers — their eyes view the world differently than ours. They also seem to be guided by electric charges because the bees have a...
Be Smart
Why Vaccines Work
Vaccines were first used in 1796, about 100 years before viruses were even discovered. Beginning with the history of scurvy and polio, viewers see how vaccines work and how they help humans overcome and eradicate diseases.
Be Smart
The Recipe For Life…
The narrator of a short video explores carbon and why it is the basis for all life on Earth and discusses all elements necessary for life that can be found in the human body.
Be Smart
Could We Clone Ourselves?
All naval oranges are clones and come from a single tree in Brazil. Viewers see how the human genome can be manipulated in a video that also discusses cloned produce, cloned animals, identical twins, and wraps up by talking about...
Berkeley University of California
Oxidation Number (Quiz)
The video contains a one-question quiz over oxidation numbers, solved with the electron dot structure. It is the seventh in a series of 15 chemistry lessons.
TED-Ed
What Does the Pancreas Do?
We are all born with one, but how many people actually know what the pancreas does? Follow along with a short video as it examines the important role this often-overlooked organ plays in digesting food and maintaining...
TED-Ed
How We Think Complex Cells Evolved
Being able to absorb the abilities of other life forms may seem like something taken from a superhero movie, but sometimes reality is stranger than fiction. Join the narrator as he takes viewers back billions of...
TED-Ed
How to Detect a Supernova
While a star explodes every second or so in the observable universe, we can't observe a supernova in its first moments. Discover the fascinating science behind how astronomers and physicists are attempting to detect supernovas early...
TED-Ed
The Science of Static Electricity
Add some spark to your physical science instruction with this short video on static electricity. Taking a look at the fundamental structure of atoms, this fun film explains how rubbing objects together can cause electrons to move...
TED-Ed
What Causes Bad Breath?
Onions, garlic, and coffee can all have unfortunate effects on your breath, but what is the real cause of halitosis? Follow along with this video as it investigates how the bacteria that live in our mouths are responsible for these...
TED-Ed
How Does the Thyroid Manage Your Metabolism?
Hidden in our neck is an important, but often overlooked, little organ called the thyroid. Enjoy this short video as it explains the vital role this powerful organ plays in controlling the function of all...
TED-Ed
How Do Your Kidneys Work?
If humans can live without one kidney, how important can they really be? Investigate the vital role these organs play in filtering our blood, removing waste, and managing our bodies' water supply with this short animated video.
TED-Ed
What Does the Liver Do?
It's the heaviest organ in the human body, but exactly what role does the liver play in sustaining life? Follow along with this short video as it explores the various ways the liver filters, stores, and manufactures materials...
TED-Ed
How Do the Lungs Work?
With the thousands of tasks our brain consciously performs on a daily basis, it's amazing that breathing isn't one of them. Learn how human bodies are able to automatically control the exchange of gas that keeps us alive...
TED-Ed
How Does Cancer Spread Through the Body?
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...