A SciShow Kids viewer wants to know, 'Why do lightning and thunder happen?' Get your raincoat, because Jessi will take you inside a thunderstorm to give you the answer!

People send 100 billion WhatsApp messages every day -- and they're all encrypted to protect them from potentially curious entities like companies, governments and even WhatsApp itself. With our increased reliance on digital communication...

We've learned before here on SciShow Kids how boats can float on water using displacement! Today, Bill and Webb will show you how to build you own boat and see displacement in action! Anchors aweigh!

How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.

Jessi and Squeaks are working on an experiment: Making an ordinary magnet float in the air!



Next Generation Science
Standards:
NGSS Performanc
e Expectations:
3-PS2-3: Ask questions to determine cause and effect...

Forces are pushes or pulls on an object. Forces can be determined by measuring the motion of an object. If an object accelerates then a force is present.

At TEDYouth 2011, performance artist Carvens Lissaint shows how to use language, metaphor and imagery to express a powerful idea -- as in this spoken-word performance, a stirring plea to make college education more accessible.

Maintaining a healthy weight takes more than diet and exercise, says physical activity epidemiologist Olivia Affuso. In this actionable talk, she shows how you can kickstart a healthy life by tapping into the collective power of a...

Humans, octopi and pine trees alike are all made up of cells, tiny but sophisticated systems that keep life going. Cells are almost like tiny factories run by robots, with the nucleus, DNA, proteins, lipids, and vitamins and minerals all...

Mr. Andersen shows you how to properly core potatoes for the osmosis lab. A thorough description of the lab protocol is included along with a brief description of percent mass change.

Levers are a simple machine that help us make work easier. But how do they work and how can you make one to help you? Check out this episode with Squeaks and Jessi to learn all about levers!

Origami is helping to ease our journeys back from space, and astronomers are learning more about coronal mass ejections from a distant star!

What is a sport? Do arbitrary and technophobic rules matter?

Go long!

This video program compares mass and weight, while illustrating how these are measured. Metric units are used to measure these things using a scale or balance. The video correlates to the Next Generation Science Standard for Middle...

Why doesn't the force break the eggs?

No cheating!

Go through the loop, Higgins!

This video explains what Git Pull does.

This video explains creating a remote branch and pushing changes using Git Bash.

This video explains how to update local references with Git fetch.

This video explains syncing the forked repo with the original from the local repo.

This video explains resolving conflicts on GitHub the right way - force pushing changes and their consequences.

This video explains Git Pull with rebase and its implications.