The true geographic North Pole is bereft of vegetation. Trees need soil to flourish. As the North Pole is composed of random chunks of ice in close proximity, there is no way that growth can occur. Then there are months of darkness,...

The second layer of the Earth's atmosphere, above the troposphere and below the mesosphere.
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Key scientific terms defined in just 60 seconds using stunning images and concise textual...

The regions of the Earth in between the Tropic of Cancer and arctic circle in the northern hemisphere, and the Tropic of Capricorn and Antarctica in the south, that have less extreme temperatures than the poles and equatorial...

A unique combination of sunspots, solar flares and magnetic fields combine to create a visual spectacle on Earth. But what are the forces at work? Physics - Our Solar System - Learning Points. Natural light displays known as Aurora...

What is the difference between day and night? How is this governed by the Earth's movement? Physics - Our Solar System - Learning Points. The Sun generates light. The Earth spins on its axis. A full rotation of Earth takes 24 hours. The...

What is the Coriolis effect? How is it produced and how does it affect our weather? Earth Science - Weather - Learning Points. The way wind blows determines thunderstorms to hurricanes. The Coriolis Effect is a deflection of moving mass...

We use two magnets and a set of scales to examine magnetic field and strength. One magnet is attached to the scales and a second is lowered towards it. When opposite poles are facing each other, the weight on the scales decreases as the...

What is wind and what are localised winds? Find out about the global cycles which take winds right across the world. Earth Science - Weather - Learning Points. Wind begins with the difference in air pressure. Air moves from areas of high...

Discover how the chemical reactions which produce the extraordinary colours of the Northern Lights have their origins in outer space. Chemistry - Atoms And Bonding - Learning Points. Aurora Borealis, or Northern Lights, is a natural...

What are the properties of magnets, and why are they useful to us? Physics - Electricity And Circuits - Learning Points. A permanent magnet is a piece of metal that possesses a magnetic field. The magnetic field is strongest at the...

The lower and most dense part of the atmosphere, extending to an altitude of about 20km at the equator and 11km at the poles. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...

In between two extremes, neither one thing nor another. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

Find out how magnetic and non-magnetic materials are separated at a junkyard using a giant magnet.
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Find out how birds can use the Earth's magnetic field to help them migrate.
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By the end of this learning object, the student will be able to: Explain the occurrence of aurora phenomenon.4436

Get ready to move with 'Forces and Motion,' where kids will learn how pushes and pulls make the world go 'round! It's a fast-paced adventure into the physics that powers our daily lives.

Venus Express, an ESA probe launched in 2005, was designed to study the unique atmosphere and dynamics of Venus, our closest planetary neighbor. Equipped with infrared and ultraviolet imaging technology, it captured stunning images of...

Inspired by traditional East African dhows, Anne and Jean chose to use local materials and techniques for their eco-lodge on Cholé Island. This decision aimed to invest in the local community, providing jobs and supporting the economy...

The true geographic North Pole is bereft of vegetation. Trees need soil to flourish. As the North Pole is composed of random chunks of ice in close proximity, there is no way that growth can occur. Then there are months of darkness,...

Discover the fascinating history of 'knocker uppers', the early alarm clocks in Britain and Ireland.

More than 90 percent of the Earth s ozone exists in the lower reaches of the stratosphere, between 13 and 20 kilometres up. Known as the Ozone layer it acts as a filter that absorbs between 93 and 99 percent of the high energy...

Discover the fascinating history of 'knocker uppers', the early alarm clocks in Britain and Ireland.

The Smart One probe, launched in 2003, is revolutionizing lunar exploration with its solar-powered ion drive and high-resolution imaging capabilities. Cost-effective and compact, Smart One is paving the way for future space missions by...

This video describes the rise of Bachdan Kamelnitsky, a Cossack leader who initiated a successful uprising against the Polish Lithuanian Commonwealth in the mid-17th century. Through strategic alliances and military prowess, Kamelnitsky...