Curated Video
The Nitrogen Cycle
Nitrogen is integral to the production of protein and DNA. Discover how it is present on Earth in a constant cycle, and how nitrogen from the air enters the food chain. Biology - Ecosystems - Learning Points. The nitrogen cycle describes...
Curated Video
Danger: Volcanic Ash
When a volcano in Iceland erupted in 2010, hundreds of planes were grounded by volcanic ash. Why? Past experience had shown just how dangerous flying in an ash cloud can be. Earth Science - Geology - Learning Points. In March 2010, the...
Curated Video
Global Dimming
Even though the planet is warming, the amount of sunlight reaching the Earth's surface is decreasing. What is causing this, and what effect does it have? Earth Science - Human Impacts - Learning Points. Global dimming is the reduction in...
Curated Video
The Water Cycle
All water on planet Earth is constantly cycled from the atmosphere, into reservoirs, and through plants and animals. The Earth's water has completed this cycle around 8 million times. Earth Science - Weather - Learning Points. Water on...
Curated Video
The Moon - Earth’s Natural Satellite
An introduction to the Earth's moon. What makes a moon a moon? Physics - Our Solar System - Learning Points. A moon is a natural satellite. Our Moon orbits the Earth roughly every 28 days. The Moon's glow is caused by the reflection of...
Curated Video
The Taiga Forest
The Taiga forest is the largest land ecosystem on Earth, stretching from Alaska to Japan. Explore the Taiga and discover the plant and animal life that survives these freezing conditions. Biology - Ecosystems - Learning Points. The Taiga...
Curated Video
The Big Chill
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...
Curated Video
Carbon Capture: Phytoplankton
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....
Curated Video
Kittinger: First Man in Space?
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...
Curated Video
Coriolis Effect
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...
Curated Video
Cylinders: Fuelling Saturn V
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...
Curated Video
The Greenhouse Effect
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....
Curated Video
What is a Volcano?
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....
Curated Video
Types of Weather: Introduction
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...
Curated Video
Hubble Space Telescope
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...
Curated Video
What Are Asteroids?
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...
Curated Video
Chernobyl Disaster
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...
Curated Video
Next Stop Mars
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,...
Curated Video
How to Make Fake Snow
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...
Curated Video
Mars: The Search for Water
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...
Curated Video
Clathrate Gun Hypothesis
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...
Curated Video
Earth's Twin
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...
Curated Video
The Carbon Cycle
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...
Curated Video
Place Like Home: Life On a Moon
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%...