In this video Paul Andersen shows you how to write balanced equations that describe chemical changes. He then gives you a short introduction to balancing equations and uses the PHET site to practice this skill. In aqueous solutions an...

Picture this: you're gorging on leftover Halloween candy. You take a bite of a fun-size chocolate bar and instead of sugary goodness, you get a flash of blinding pain in your tooth! What's the deal?

David McCandless turns complex data sets (like worldwide military spending, media buzz, Facebook status updates) into beautiful, simple diagrams that tease out unseen patterns and connections. Good design, he suggests, is the best way to...

How Do Bikes Stay Up?

How does knowledge grow? Sometimes it begins with one insight and grows into many branches; other times it grows as a complex and interconnected network. Infographics expert Manuel Lima explores the thousand-year history of mapping data...

If you: do laundry, are (or have been) pregnant, tidy up, shop for your household or do similar labor, then by GDP standards, you're unproductive. In this visionary talk, economist Marilyn Waring seeks to correct the failures of this...

Have you ever done something that required a ton of concentration, like threading a needle, and noticed that sometimes your tongue pokes out involuntarily? It turns out this reflex could be a leftover from the evolution of human language!

50 to 70 million people are thought to have some kind of sleeping disorder. If you're one of those people, desperate for a good night's sleep, scientists may have an option for you: rocking!

Strange landscapes, scorching heat and (sometimes) mad crocodiles await scientists seeking clues to evolution's genius. Paleontologist Paul Sereno talks about his surprising encounters with prehistory -- and a new way to help students...

Ever wonder what makes tape sticky? Hank will tell you in this episode of Quick Questions!

Paul Andersen explains how the Meselson-Stahl experiment was used to prove that DNA copied itself through a semi-conservative process. They grew E. coli in a medium containing heavy nitrogen (N-15). They then added the E. coli to a...

Mr. Andersen shows you how to read a position vs. time graph to determine the velocity of an object. Objects that are accelerating are covered in this podcast. He also introduces the tangent line (or the magic pen).

Imagine a workplace where people of all colors and races are able to climb every rung of the corporate ladder -- and where the lessons we learn about diversity at work actually transform the things we do, think and say outside the...

Escaping slavery; risking everything to save her family; leading a military raid; championing the cause of women's suffrage; these are just a handful of the accomplishments of one of America's most courageous heroes. Janell Hobson...

How Long To Fall Through the Earth?

While on lockdown, the galleries of Singapore's iconic ArtScience Museum were empty -- but online, the museum was abuzz. Honor Harger shares how they're engaging deeply with its visitors through streamed talks, performances and workshops...

Ever wonder what keeps you from falling over when you’re riding your bike? Jessi, with the help of some other SciShow Kids, shows you the answer!

In this video Paul Andersen explains how the reaction path can be described in an energy profile. Enough energy must be added to reach the activation energy required and stress the bonds. Eventually the bonds break and new bonds are...

Paul Andersen explains how biogeochemical cycling is used to move nutrients from the environment into living material and back again. He explains the water cycle, the carbon cycle, the nitrogen cycle and the phosphorus cycle. He also...

In this video Paul Andersen explains how the average value of the electric field can be determined by dividing the potential difference by the displacement. Equipotential lines can be used to determine the potential in an electric field...

Flying is a great way to get around, but humans have only been doing it for a little over a century. Let’s revisit six SciShow videos exploring the world of flying non-human animals, which includes some species that you might not expect!

We've worked as a team - remotely - for seven years, and we're sharing some of our favorite tips for making it work.

In this video Paul Andersen describes how reversible reactions achieve equilibrium as reactants are converted to products and products are converted to reactants. A model shows how forward reaction rates and reverse reactions rates...

In a series of witty punchlines, Patrick Chappatte makes a poignant case for the power of the humble cartoon. His projects in Lebanon, West Africa and Gaza show how, in the right hands, the pencil can illuminate serious issues and bring...