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Earth’s Hydrosphere and Geosphere + Weathering and Erosion

How do the geosphere and hydrosphere interact and work together? How do water and dirt work together to support life on Earth? In this episode of Crash Course Kids, Sabrina Cruz explains how rain, waterfalls, rivers, ...

NASA’s Opportunity Rover completes its mission on Mars

From its landing on Mars on January 24, 2004 to the mission's end, announced on February 13, 2019, NASA's Opportunity rover has been a wonder of space exploration. For almost 15 years, the golf-cart-size explorer trek...

How are coins made at The Royal Mint?

How are coins pressed from shiny discs of malleable metal at The Royal Mint? Nickel-brass alloy, graphite, sulfuric acid, ball bearings, heat, water, and a factory full of machines prepare these blanks before engraved...

What did a baby T-Rex look like?

What did a baby T-Rex look like? And what evidence do we have to help figure that out? In preparation for T. rex: The Ultimate Predator, an American Museum of Natural History exhibition, AMNH experts used cutting-edge...

Lifecycle of a Chinese Luna Moth

Follow the growth of the Chinese Luna Moth (Actias dubernardi) from egg, to caterpillar, to cocoon, to adult. This calmly-paced, 16-minute video covers approximately 70–85 days of development, filmed by insect YouTube...

Smash and Grab, a Pixar Sparkshorts film

In Smash and Grab, an action-packed, sci-fi Sparkshorts film from Pixar, two robots work diligently to power the engine car of a locomotive. Together, they make the best of the grind, until one discovers that there ar...

How to build with different mud recipes

Dirt, sand, straw, clay, and water. Mixed and packed together in different combinations, these materials can create incredibly sturdy shelters and structures. In this video from The Nito Project, artist builder Benito...

The tooth-billed hummingbird’s combat moves

When it comes to nectar, the hummingbird is notorious for its highly competitive nature. "Their high-energy lifestyle compels hummingbirds to locate reliable food resources" and then to defend them once found. In the ...

What’s the dirtiest place in your home?

Think of the dust, the hidden ants and spiders, or the potential molds, fungi, and bacteria that can be in any household. Is the dirtiest place in your home under your bed? On doorknobs? In the dishwashing sponge? In ...

Stop-motion Paper Mario

Paper Mario, but with actual paper. Hand-drawn in a notebook and animated with stop-motion, Nintendo fan Kisaragi Hutae 6 recreates a scene from Mario's side-scrolling quest in Super Mario Bros, complete with sound ef...