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Ancient History: Sparta

Youth History Human World
Take a quick dive into the history of ancient Sparta.

The Singularity: Will AI Outsmart Us All?

Youth Artificial Intelligence Future Technology
The Singularity is a theory that imagines what it would be like if artificial intelligence outsmarts humans.

Penguin Triangle Breathing

Youth How-to Self Wellness
Triangle breathing is a helpful technique to manage stress and anxiety, promoting focus and relaxation.

Red Pandas Play In The Snow

Youth Animals Fun
Red pandas at the Cincinnati Zoo enjoy playing in the snow, despite record-low temperatures.

How Do Erasers Erase?

Youth How-to Science
Are you wondering how erasers erase? Let's find out together.

Why Hurricane Paths Are Weird

Youth Weather World
Hurricane path prediction seems straightforward, until it is not.

You Are Your Microbes

Youth Biology Science
Jessica Green and Karen Guillemin emphasize the importance of understanding the many organisms that make up each and every organism.

World's Grumpiest Cat

Youth Animals Nature
Dinnertime is a gamble for Pallas’s cats, and this one’s hangry.

Diplocaulus: An Ancient Animal

Youth Animals History Science
Squeaks and Jessi discover an animal with a head that reminds them of a boomerang.

Animated Maps: Tectonic Plate Movement

Youth History World
This set of 41 paleo-elevation models (DEM) represents the changing paleogeography of the oceans and continents back to 540 million years ago.

What Is Misinformation?

Youth Education Reading
What types of misinformation might we see online? And why is it out there? KN contributor Aubrie Chan animated this video to help you understand the term better.

Word Processing Software 1

Youth How-to Productivity Writing
Get started on using word processing software.

How Do Polar Bears Walk On Ice?

Youth Animals Ecology Nature
Are you wondering how polar bears walk on ice and snow? Let's find out together.

Eclipses Used To Be Terrifying

Youth History Science World
Because eclipses are powerful and frightening events, ancient cultures went to great lengths to understand eclipses.

The Ice Bucket Challenge Actually Worked

Youth Genetics Health Science World
The Ice Bucket Challenge raised millions of dollars for research into treatments for ALS, or Lou Gehrig's disease.

Presentation Software

Youth How-to Productivity Writing
Learn the skills needed to create the perfect presentation.

Rescuing Nibi

Youth Animals Health
Baby beaver Nibi was rescued and now has uncanny object recognition.