Recycling trash is one really important way that we can help the Earth stay clean! It's much better to recycle things than throw them away, but it's super important to recycle plastic! Jessi is here to tell you why!

Jessi's on spring break, but Dino's here to teach you about birds and how you can recycle items around the house to make bird feeders! #sciencegoals

In this video Paul Andersen explains how the resources required for survival come from the Earth. The resources are not evenly distributed on the planet and neither are the humans. According to the NGSS we need to limit the use of...

FYI: We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some keywords to get your googling started:



Malaria - a...

Animals eat their own poop in order to gain extra access to nutrients or to microbes that help digest those nutrients.



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The famous symptomless carrier of Typhoid Fever, Mary Mallon, never felt the effects of the fever, but never recovered from a medical system that didn’t know how to treat a carrier of the disease.

You've seen it on your shampoo bottle, vitamins, and even your fancy moisturizing cream. But what does the phrase "clinically proven' actually mean?

When many individual organisms come together and move as one entity, that's a swarm. From a handful of birds to billions of insects, swarms can be almost any size. They have no leader, and members interact only with their neighbors or...

Slime molds look gross and... not smart, but they definitely seem to communicate and plan even without neurons. Michael explains the science behind these clever eukaryotes.

It's the end of this first year of Crash Course Kids and we've learned so many things. In this episode, Sabrina takes us on a tour of some of the ideas we've talked about and how they fit into our lives. Also, what all of these ideas...

We've talked about food chains and how energy moves through an ecosystem, but let's take a step back and see how everything starts... and ends. Decomposers! This first series is based on 5th grade science. We're super excited and hope...

You may not realize it, but your body is like a fortress, designed to defend you from tiny foreign invaders known as pathogens. This seemingly small world is actually super diverse, and sometimes super dangerous too. That’s why in this...

420 million years ago, a giant feasted on the dead, growing slowly into the largest living thing on land. It belonged to an unlikely group of pioneers that ultimately made life on land possible -- the fungi.

Paul Andersen explains how eukaryotic cells were formed through a process of endosymbiosis. He describes how aerobic bacteria became mitochondria and cyanobacteria became chloroplasts. He mentions an example of symbiosis that occurs...

Learn about our 5 main food groups with Jessi and Squeaks, then see if you can name them all!

So... do plants need dirt? The truth might shock you. In this episode of Crash Course kids, Sabrina talks about how plants get energy and how that energy is transported around them. Also, she talks about dirt.