By the early 1900’s, nearly every region of the globe had been visited and mapped, with only two key locations left: the North and South Poles. After two Americans staked claim to reaching the North Pole, a Norwegian explorer and a...

Paul Andersen explains how objects interact when touching and at a distance. Electromagnetic forces are very important when objects are touching and fields explain both electromagnetic and gravitational forces. The strong and weak...

In the early 1800s, Michael Faraday showed us how a changing magnetic field induces an electromotive force, or emf, resulting in an electric current. He also found that electric fields sometimes act like magnetic fields, and developed...

Antarctica wasn't always covered in kilometer thick ice sheets, in fact, scientists have spent years figuring out what turned this once lush continent into its current icy state.

It sounds like science fiction, but journalist Stephen Petranek considers it fact: within 20 years, humans will live on Mars. In this provocative talk, Petranek makes the case that humans will become a spacefaring species and describes...

The water on Mars probably doesn't have much oxygen, but new models show that life doesn't need as much O2 as we thought. And NASA is sending a claw machine to the red planet!

Mister Brown and Squeaks are here to teach you all about the compass - and they will even help you make your own!



NGSS Performance Exp
ectations:
3-PS2-3: Ask questions to determine cause and effect relationships of...

In this final segment on the four fundamental forces of physics, Hank tackles the magnetic force, the second of the two ways in which electromagnetism is apparent in the universe

Is it in the Arctic Ocean? In Canada? Russia?

In this video Paul Andersen explains how magnetic domains act as tiny magnets within ferromagnetic material.

In this video Paul Andersen explains how all material has magnetic properties. Ferromagnetic material can be permanently magnetized, paramagnetic material will align with magnetic fields, and diamagnetic material will align weakly with...

You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be...

NASA's Cassini spacecraft has detected a huge ocean under the surface of Saturn's moon Enceladus. But how? And what does it really mean? Hank lays out the data -- straight from space to your brain!

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...

New ReviewOn February 28, 1959, the U.S. Air Force launched a new spy satellite prototype called Discoverer 1. This was the first satellite that NASA launched toward the south pole in an attempt to put it in a polar orbit. But the mission didn't...

2 minute video demonstrating magnetism and magnetic properties for middle school science

Explore what happens if you fall straight through Earth—using Newton’s Shell Theorem, simple harmonic motion, and real gravitational data. Understand why every straight tunnel gives the same 42-minute trip, and how gravity behaves inside...

There is no time in the North and South Pole

Pupil outcome: I can use latitude and longitude to locate places around the world. Key learning points: - Lines of latitude are horizontal circles on Earth, measured in degrees north or south of the Equator. - Lines of longitude are...

Pupil outcome: I can locate hot places in the world using an atlas and globe. Key learning points: - The sun’s energy is more concentrated when it is directly overhead: in the tropics this happens throughout the year. - The tropics are...

Pupil outcome: I can locate and talk about the Arctic Circle using maps and globes, and describe seasonal changes. Key learning points: - The Arctic Circle is an imagined circle around the North Pole that surrounds the area known as the...

Pupil outcome: I can apply my knowledge and skills to explain some of the geographical differences between Asia and Antarctica. Key learning points: - Antarctica and Asia have contrasting climates and are in different climate zones. -...

Pupil outcome: I can use a range of geographical sources to describe Antarctica and its extreme weather and climate. Key learning points: - The Antarctic Circle is an imagined circle around the South Pole that surrounds the area known as...

Pupil outcome: I can describe the world’s polar regions and explain a number of ways in which they are important. Key learning points: - Because an essay is a non-fiction piece of writing, it must be based on facts. - Facts are obtained...