Topic: geography

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What counts as a mountain?

Mountains: super tall, rocky landforms that rise high above the surrounding environment, much higher than hills. We might draw one as a single peak like Mount Fuji, or as a zig zag line of peaks representing a mountai...

Territorial History of the USA: Every Month for 400 Years

Starting in 1629 and continuing through every month for (almost) 400 years, see how the contiguous United States formed colony by colony, then state by state, expanding with massive territories and redefining within c...

The Arctic vs. the Antarctic

If you're first learning about them, the Arctic and the Antarctic might be a bit confusing. Which one is which? Where are the penguins and where are the polar bears? Which is made of melting ice and which is a desert?...

Why all world maps are wrong

How do you make something round into something flat without distorting it? Something round, like a globe or a planet, is three dimensional. Something flat, like a paper map hanging on the wall, is two dimensional. If ...

How zip codes helped organize America

The 'zip' in zip code stands for The Zone Improvement Plan, an address code system that was invented in 1963 to help the United States Postal Service (USPS) deliver the increasing amount of mail being sent around the ...

Marie Tharp: Uncovering the Secrets of the Ocean Floor

In the early 20th century, Alfred Wegener proposed a revolutionary idea: that the Earth’s continents were once joined together, and had gradually moved apart. The idea contradicted almost everything scientists thought...

The Basics of Freshwater + Water, Water, Everywhere?

With around 326,000,000,000,000,000,000 gallons (326 million trillion gallons or about 1,260,000,000,000,000,000,000 liters) of water on Earth, covering 71% of the Earth's surface, you'd think it would always be easy ...

Flying a drone over Sudan’s 3,000 year old Nubian Pyramids

Present-day Sudan has more pyramids than Egypt does, smaller structures known as Nubian pyramids that were built by the rulers of the ancient Kushite kingdoms. The first site of these royal tombs was in El-Kurru in no...

Yakko’s Nations of the World: An updated version

For anyone who watched cartoons in the early 1990s, Yakko's World from Steven Spielberg Presents: Animaniacs will be familiar. A memory-challenging list song, Yakko’s World inventories the nations of the world in a to...

Earth Observations: Astronauts search for cities from ISS’ Cupola

What do volcanoes, islands, dry lake beds, and big cities look like from space? Join International Space Station Expedition 38 crew members Mike Hopkins and Rick Mastracchio as they chitchat about Earth's cities and c...

Mesmerizing flight visualizations over 24 hour periods

The above air traffic visualization shows the incredible amount of planes coming and going from European airspace over the course of one summer day. It was created by NATS, an air traffic control services provider, an...

The Pangaea Pop-up – TED Ed

This papercraft pop-up book illustrates how South America and Africa used to be connected, how the supercontinent Pangaea broke apart 200 million years ago, how the Earth's seven primary tecto...

The Animated Life of A.R. Wallace

This incredible paper puppet video by Flora Lichtman and Sharon Shattuck chronicles the story of British naturalist, anthropologist, biologist, geographer, and intrepid adventurer Alfred Russel Wallace, who was also C...

An animated map of the bedrock beneath Antarctica’s ice sheet

What is beneath the world’s largest ice sheet? Compiled by the British Antarctic Survey and made from “millions of new measurements, including substantial data sets from NASA’s ICESat satellite and ...