Videos have long been an excellent way to engage kids in learning. When it comes to science, today’s online videos take us places far beyond field trips. They show us science experiments that you just can’t do in the real classroom. They help answer the eternal “Why does it do that?” question. In short, they make science learning fun and meaningful. Take a look at our favorite sources for free science videos online.

1. Steve Spangler’s Sick Science

Steve Spangler has all the coolest science experiments and demos, the ones that make kids go “wow!” You can watch his videos on their own or use his directions and explanations to complete hands-on science activities in class. 

Check it out: Steve Spangler’s Sick Science

2. MinuteEarth

MinuteEarth has a regularly updated collection of short, free science videos all about Earth. We especially love that there’s a whole channel of videos in Spanish (MinutoDeLaTierra), too.

Check it out: MinuteEarth

3. Science Bob

Science Bob’s videos are a combination of experiments you can try yourself and experiences you probably can’t replicate. Whether he’s building a baking soda volcano or floating through zero gravity with 2000 ping-pong balls, these free science videos are sure to entertain.

Check it out: Science Bob

4. National Geographic Kids

Help kids explore the world, both near and far, with Nat Geo Kids videos. Learn amazing facts about ice cream, robots, inventions, droids … You name it; Nat Geo Kids has it.

Check it out: National Geographic Kids

5. Popular Science

Popular Science has been covering fascinating topics in its magazine for nearly 150 years. So it’s no surprise they have an archive of videos on pretty much any subject you can think of. Some are more in depth than others, so teachers of all ages will find useful, free science videos here.

Check it out: Popular Science on YouTube

6. Science Kids

Science Kids rounds up free science videos from all over the web in one place. They cover a wide range of topics, like weather, engineering, and video-game technology, just to name a few.

Check it out: Science Kids

7. Sport Science

There’s plenty of science behind kids’ favorite sports. This video series from ESPN looks at the science involved in running the fastest, jumping the highest, kicking the hardest, and more. 

Check it out: Sport Science on YouTube


To infinity and beyond! NASA’s video collection includes recordings of launches and landings as well as plenty of other important space-related topics. 

Check it out: NASA’s Video Gallery

9. Scientific American

Scientific American has been publishing its magazine since 1845, and their video archives are full of fascinating subjects. There are free science videos here for a range of ages and interests.

Check it out: Scientific American on YouTube

10. How Stuff Works

You’ll find a huge variety of topics here, all done in a casual style that’s easy for kids to relate to. Be aware that some of these videos are a little more PG-13 than G, so watch in advance to make sure they’re appropriate for your audience.

Check it out: How Stuff Works

11. Sid the Science Kid

Chances are good that if you teach preschool, you already know about Sid the Science Kid. His fun and friendly approach to topics, like muscles, whales, and bugs, is beloved by kids everywhere.

Check it out: Sid the Science Kid

12. Tell Me Why

The Tell Me Why series from The Explained Show seeks to answer the never-ending “but WHY?” inquiries from kids. These fun videos offer a light-hearted look at all sorts of science concepts.

Check it out: Tell Me Why

13. CrashCourse

Getting ready to introduce a new topic to your class? Start off with a CrashCourse video. These quick overviews of detailed topics are fast and engaging and will prepare your students to take a more detailed look at things. These videos were made with adults in mind, so they’re best for middle and high school kids.

Check it out: CrashCourse

14. It’s Okay to Be Smart

This series explores more of those nagging questions you’d love to know the answers to like, “Does my dog know what I’m thinking?” The conversational tone makes even complex topics easy to understand.

Check it out: It’s Okay To Be Smart

15. Veritasium

According to creator Derek Muller, Veritasium is the “element of truth.” Derek brings science to life with interviews, quizzes, and even two-part videos, in which you get to predict the outcome of an experiment then see the results.

Check it out: Veritasium

16. AsapScience

If you spend any time on social media, you’ve almost certainly seen some of AsapScience’s work. These hand-drawn free science videos are as fun to watch as they are informative, so it’s easy to see why they’re so popular.

Check it out: AsapSCIENCE

17. The Infographics Show

Need a constant source of new videos? The Infographics Show has you covered. Each day, they upload a new video full of numbers and statistics to answer life’s important and not-so-important questions. Their content varies, but many cover science topics. They’re not all appropriate for younger kids, so review before showing in class.

Check it out: The Infographics Show

18. Science Max

Science Max takes the same science experiments you might try in the classroom and supersizes them! These are things you probably can’t try at home, but your students will love watching these videos instead.

Check it out: Science Max

19. Finding Stuff Out

This Canadian TV series explores topics that interest kids, with a kid host to lead the way. Full episodes are about 20 minutes, just long enough to hold their attention.

Check it out: Finding Stuff Out

20. The Slow Mo Guys

Camera technology allows us to see the world in new ways, including in super slow motion. These free science videos let kids see things that happen too fast for the naked eye, making difficult concepts easier to understand.

Check it out: The Slo Mo Guys

While you’re on YouTube, why not drop by the WeAreTeachers page? We’re always adding new videos just for teachers, like How to Print on Post-it Notes or Making Stress Balls for the Classroom. Be sure to subscribe so you’ll always know what’s new!

What are your favorite YouTube science channels? Come share in our WeAreTeachers HELPLINE! group on Facebook. 

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20 Online Resources for Fantastic Free Science Videos