The Kid Should See This

Skittles candy dissolves into rainbows

Rion NakayaOctober 23, 2016April 9, 2020

Rainbow Wave LEGO Great Ball Contraption

Rion NakayaFebruary 15, 2017February 15, 2017

The rise and fall of the Berlin Wall

Rion NakayaAugust 18, 2017August 18, 2017

Turning a brick of melted crayons on the lathe

Rion NakayaMarch 29, 2016March 25, 2020

Dorothy Bolden, a leader for fair wages and better working conditions

Rion NakayaFebruary 2, 2023February 2, 2023

TKSST is a Webby award-winning collection of over 5,000 kid-friendly videos, curated for teachers and parents who want to share smarter, more meaningful media in the classroom and at home. Selections are grown-up-friendly, too. And thanks to TKSST members, it’s free and ad-free for everyone. Become a member.

About TKSST

Queen of the Primates: The red-shanked douc langur

Rion NakayaJune 2, 2023June 2, 2023

With a long white tail, reddish brown legs, a bright yellow-orange face, and pale lavender eyelids, the “Queen of the Primates”—the red-shanked douc langur—is a brilliant sight...

Popocatépetl Volcano: Time-lapses from May 19 to 22, 2023

Rion NakayaJune 2, 2023June 1, 2023

The Aztec or Nahuatl word “Popocatépetl” translates to “smoking mountain,” an apt name for Popocatépetl Volcano. Affectionately known as El Popo in Mexico, the stratovolcano remained inactive...

Zoom in, zoom out: The train speed illusion

Rion NakayaJune 1, 2023

Psychology professor Akiyoshi Kitaoka is well-known for his exploration of perception and visual illusions, as seen in these videos. In the video above, Kitaoka notices that perceived...

How to easily save a sheep’s life

Rion NakayaJune 1, 2023May 31, 2023

While many animals enjoy rolling on their backs, sheep do not. A beleaguered sheep on its back is in big trouble and needs immediate help to right...

How to make quill pens from bird feathers

Rion NakayaJune 1, 2023May 31, 2023

With large white wing feathers from swans and darker wing feathers from Canada geese, professional calligrapher Patricia Lovett can make quill pens like the ones that were...

What is Botany? Alexis Nikole Nelson explains with Crash Course Botany

Rion NakayaMay 31, 2023

Botany is the scientific study of plants, and it’s full of drama, intrigue, history, and oodles of small yet essential things that happen every single day. In...

Why are frog and toad tongues so fast and sticky?

Rion NakayaMay 31, 2023

“Toads nab their prey 5 times faster than the blink of an eye. How do they do it? They pop their lower jaw open, and launch their...

How is shiba inu hard candy made?

Rion NakayaMay 31, 2023May 31, 2023

To create an image within a hard candy, like a cute shiba inu face, the design is formed with units of candy, like pixels, as if drawn...

When a sloth chases you…

Rion NakayaMay 30, 2023

Look in the grass: A pair of eyes watches intently, and something like a smile takes shape on its mouth. The sloth is approaching… slowly. It takes...

To Scale: TIME, a short film that visualizes 13.8 billion years

Rion NakayaMay 30, 2023May 30, 2023

Seconds, minutes, hours, days, months, years, decades, and even a century. As aging humans, we can experience this, imagine this, and to a certain extent, understand this....

Why did early humans have straight teeth without orthodontics?

Rion NakayaMay 25, 2023May 25, 2023

“According to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and...

The Little Poet imagines life in a painting, an animated short

Rion NakayaMay 25, 2023May 25, 2023

“I fell in love with the girl in a painting,” explains The Little Poet in Justine King‘s third year student film at CalArts. Surrounded by artworks and...

What Is Rewilding?

Rion NakayaMay 25, 2023May 25, 2023

Can handing the reins back to nature help mend the deep environmental wounds inflicted upon our planet? Mathematician Hannah Fry discusses the transformative conservation concept of rewilding...

How are biomedical engineers improving prosthetics?

Rion NakayaMay 24, 2023May 24, 2023

With a mechanical hand and myo electrode sensors that measure muscle activity, Dr Jennifer Olson is designing and improving upper arm prosthetics that make everyday activities easier...

Pygmy marmoset mother Audrey and her tiny twins

Rion NakayaMay 24, 2023June 2, 2023

At around 13.6 centimeters (5.35 inches), pygmy marmosets are the world’s smallest primates. And their babies are even smaller and more vulnerable, as seen in this Nature...

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