Melting icecaps are threatening one of the most important currents in the world, the Great Ocean Conveyor. If it stopped, it could have devastating impacts on our climate. Earth Science - Human Impacts - Learning Points. The Great Ocean...

Phytoplankon - microscopic marine plants - could help prevent global warming. How would they do this? And is it right for man to interfere with nature in a bid to save the planet? Human Geography - A Changing World - Learning Points....

Before Yuri Gagarin orbited Earth, one man made an extraordinary trip beyond Earth's atmosphere. Can he claim to be the first man in space? Physics - Universe - Learning Points. Project Excelsior III was the American Air Force’s mission...

In creating giant detachable fuel cylinders to blast Apollo 8 into outer space, NASA engineers manufactured the most powerful machine ever made. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the...

Without the greenhouse effect, our planet would be too cold to inhabit, but it's currently a major cause of global warming. What is the greenhouse effect, and why is it such a conundrum? Earth Science - Human Impacts - Learning Points....

The cycle of lava as a destructive and constructive force, building the structure of volcanoes and powering their devastating impact. Earth Science - Geology - Learning Points. Volcanoes are landforms that occur along plate boundaries....

The weather systems on our planet are all driven by one thing: air. Discover how our weather is driven by energy from the Sun, affecting the movement of air. Earth Science - Weather - Learning Points. Our weather is a chaotic and complex...

How scientists working on the Hubble Telescope, orbiting 400 miles above the Earth, fixed a fault by giving the telescope a pair of specs. Physics - Universe - Learning Points. The Hubble Telescope took eight years to build, from over...

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...

How are asteroids in our Solar System formed, where are they found, and what danger do they pose to life on Earth? Physics - Our Solar System - Learning Points. Asteroids are made from rock, metal or carbon, while comets are made of rock...

In 1986, the Chernobyl nuclear power plant exploded. What caused the explosion and why has Chernobyl become a lasting reminder of the dangers of nuclear power? Earth Science - Earth's Resources - Learning Points. The world's first...

The Sun is dying, and getting hotter as it does. As life on Earth becomes unsustainable, could we move to Mars? Physics - Universe - Learning Points. The Sun will die in approximately 5 billion years. As the Sun ages, it will get hotter,...

Snow forms in the atmosphere as a result of water molecules attaching themselves to nuclei bacteria. But scientists have found ways to manipulate the freezing process of water and the production of these nuclei to create snow...

We know that Mars once had a landscape with oceans and rivers, but what happened to it? Physics - Universe - Learning Points. Although Mars is a freezing dry world today, it is thought the planet was once like Earth. If liquid water once...

The largest volumes of methane on Earth are frozen deep underground. Learn how global warming could melt these stores and start the irreversible process predicted by the Clathrate Gun Hypothesis. Earth Science - Human Impacts - Learning...

Billions of years ago, Earth collided with its twin planet Theia. The impact and resulting geophysical changes prepared Earth for complex life. Physics - Our Solar System - Learning Points. 4 billion years ago Earth had a twin called...

Through organic matter, rocks and the oceans, the element central to all life on Earth is constantly on the move. Earth Science - Earth's Resources - Learning Points. The carbon cycle is a transfer of carbon between living matter and the...

The discovery of Titan's atmosphere excited scientists, who believe it could hold the key to life on Earth. Physics - UniverseLearning Points. Titan is the only moon in the Solar System with a dense atmosphere. Titan's atmosphere is 98%...

The world has already faced a major global climate challenge: the hole in the ozone layer, discovered in 1985. Find out what ozone is, why it's important, and how the ozone hole is being repaired. Earth Science - Human Impacts - Learning...

Tropical rainforests are competitive environments where plants must compete for space and resources. But other dangers threaten the balance and future of these important habitats. Biology - Ecosystems - Learning Points. Tropical...

We create a cloud in a bottle using warm water and smoke. Some warm water is placed in a plastic bottle and then some smoke is drawn in using a glowing splint. The bottle is sealed and then squeezed and released. The change in pressure...

We demonstrate the effects of imbalances of pressure. A metal can is crushed by atmospheric pressure. We add some water to a can and boil it until the can is full of water vapour. It is then sealed and left to cool and after a few...

The potentially deadly threat changes in pressure pose for divers. What happens when a diver experiences the bends, and how can they be saved? Physics - Forces - Learning Points. The Bends is decompression sickness, which affects divers...

Discover some geo-engineering techniques that scientists are developing to manipulate Earth's climate. What are they and how would they work? Earth Science - Human Impacts - Learning Points. Geo-engineering strives to use technology to...