Category: Science Videos

Proof of evolution is in your DNA Anthropology Biology Genetics and Heredity Science Videos STEM Education 

Proof of Evolution Is in Your DNA

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Another great video from our friend Dr. Joe Hanson and the team behind the video series It’s Okay to Be Smart, brought to you by PBS Digital Studios. This time, we’re looking at the proof of evolution that’s embedded right there in our DNA. According to Dr. Hanson, “Humans are special, and we got that way thanks to evolution and natural selection. The proof is right there in our bodies! From anatomy to genes, here are some stories of how you got to be the way you are.” Evolution of…

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7 Scientific Urban Legends Debunked Science Videos STEM Education 

7 Scientific Urban Legends Debunked

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How reliable is common knowledge? If a large number of people believe something, that doesn’t make it true. Dr. Joe Hanson of the It’s OK to Be Smart series from PBS Digital Studios debunks seven scientific urban legends. He also makes a compelling argument for why we desperately need open-access science information and effective communication. Sometimes common knowledge is wrong. For common knowledge to be right, then knowledge needs to be, well, common. It sounds like such an incredible fact. “Our own cells are outnumbered by our microbes 10 to…

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Astronomy and Astrophysics New Technologies Physics Science Videos 

How to Drink Coffee in Space

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Many of us remember being in a school assembly when an astronaut came to speak. The question on every kid’s mind (and teacher’s mind too, let’s be honest) was, “How do you go to the bathroom in space?” But what about other important things involving liquids in space? As it happens, there is a lot of research surrounding the behavior of fluids in zero gravity, such as how to drink coffee in space. In this video, our friend Dr. Joe Hanson from It’s OK to Be Smart explains why this…

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Biology Science Videos 

It’s Okay To Fart

Science Connected

Farting is hilarious and gross and everyone is doing it so why can’t we talk about the science of it?! Flatulence, passing gas, cutting the cheese, toots… whatever you call it, it’s natural. Humans pass gas about 20 times a day on average, and collectively, we fart about 7 billion liters of gas each day! Here’s how it works. Farts are either the result of trapped, swallowed air being expelled from the body, or as byproducts of the microbes living in your gut. [tweetthis]I fart, you fart, we all fart–but why? And…

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Biology Science Videos 

Is Height All In Our Genes?

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Dr. Joe Hanson is tall. Most of the people in his family are tall. Does that mean his son will be tall? Turns out the inheritance of height is a lot more complicated than we thought. Scientists know that nature (genes) and nurture (environment) both play a role, but after more than a century of questions, we’re only just now starting to get some answers. In this episode of It’s Okay to Be Smart, learn how the average height of humans changed over time due to agriculture, migration, and industry.…

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Biology Health Science Videos Zoology 

Will You Still Eat Raw Fish After Watching This Video?

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Sushi, sashimi, and poke are delicious. Why? It’s because they’re all made of raw fish! But, have you ever noticed that warning about raw or undercooked seafood at the bottom of restaurant menus? Have you ever wondered why it’s there? It’s there because fish carry a ton of parasites. And if the fish aren’t prepared correctly, then those parasites can make it into your body. This fishy intersection with the wild world of parasites can teach us a lot about how these moochers help keep ecosystems healthy, and why we…

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Biology Science Videos 

How Habits Are Formed

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Do you have some bad habits that bother you, but you just can’t seem to break? That’s because habits are literally wired into your brain. Every single thought, action, and feeling changes your brain a little bit. For example, this is what loneliness can do to your brain. When repeated enough times, a habit is formed. Some are good, some are bad, but you’re not likely to forget any of them without serious effort. Learn about which parts of your brain are responsible for forming habits, how long it takes,…

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Biology Genetics and Heredity Science Videos Zoology 

Science with Sophie: Dogs

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Do dogs really exist? Okay, we know dogs really exist. But how do you know if something really exists if you can’t see it? On this episode of Science with Sophie, Sophie explores why it’s so important to do your own research, as well as how genetic traits as passed down. And as a bonus, you’ll learn all about the history of dogs, complete with at least five different canine cameos. Do the science experiment with Sophie To do the science experiment, you’ll need these things: something to write on something…

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Science with Sophie: Scabs, scab Biology Health Science Videos STEM Education 

Science with Sophie: Scab Science

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Scab Science It’s happened to all of us. You’re running or riding your bike, you slip, you fall, and you skin your knee. After a few days, you notice that the cut where you skinned your knee has formed a scab. What happens to our bodies when we get hurt? Why do we get cuts, and why do we get scabs afterward? Learn how white blood cells, proteins, and skin cells work together to help you get better after you get hurt in this episode of Science with Sophie! Do…

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Linguistics New Technologies Science Videos 

How Some Words Get Forgetted

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Get ready for a dive into linguistic history! Our friend Dr. Joe Hanson from It’s Okay to Be Smart (PBS Digital Studios) goes full science nerd on the English language–and irregular verbs. Why are irregular verbs so common in English? Where do they come from? English is a confusing language for many reasons. But the irregular verbs might be the most confusing part. Why is “told” the past tense of “tell” but “smold” isn’t the past tense of “smell”? It turns out that the study of irregular verbs can teach…

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