Curated Video
Intermolecular Forces
Discover the role played by intermolecular forces in changing the state of matter between solid, liquid and gas. Chemistry - Atoms And Bonding - Learning Points. Intermolecular forces are the attractive forces between molecules....
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Terminal Velocity
If a skydiver jumps out of a plane, when will they stop accelerating? Competing physical forces hold the answer. Physics - Forces - Learning Points. Terminal velocity is the maximum constant velocity. Terminal velocity increases with...
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Black Holes
Discover how dying stars transform into black holes, areas of mass so great that even light can't escape. Physics - Universe - Learning Points. When a star dies, it collapses and condenses into a single point, known as a singularity. The...
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Yosemite's Valleys
The landscape of this national park was shaped by ice - carving the valleys, waterfalls and sheer cliffs that attract tourists from all over the world. Earth Science - Geology - Learning Points. Glacial ice has reshaped the landscape of...
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Machines: Building the Pyramids
It was thought the Egyptians used only manual labour to build some of the Wonders of the World. Now it is though they could have used simple machines. Physics - Forces - Learning Points. It is believed that the Egyptians constructed the...
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Fighter Pilots: G-Force
Changes in acceleration pose an extreme risk for fighter pilots. Find out how they train to avoid blacking-out during flights. Physics - Forces - Learning Points. Fighter pilots undergo training to allow them to cope with G-force....
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Yellowstone: Supervolcano
The geothermal features of Yellowstone National Park are a clue to its deadly secret. It sits on a massive supervolcano. But why can't we see it and will it ever erupt? Earth Science - Geology - Learning Points. Yellowstone National Park...
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Friction
Friction can be friend or foe. What is friction, how does it affect our lives and how can we alter it? Physics - Forces - Learning Points. Friction is a resistive force between surfaces moving at different velocities. Friction is...
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Scablands: Carved By Water
Over 15,000 years ago, a glacial dam broke, releasing 2,000 cubic kilometres of water across Washington State. Discover how it created the landscape we see today. Earth Science - Geology - Learning Points. Washington State's chaneled...
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Newton's Laws of Motion
Isaac Newton's Laws of Motion explain how and why objects move as they do - the principles which underlie all of modern mechanics. Physics - Forces - Learning Points. Sir Isaac Newton published his laws of motion in 1687. Every movement...
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Water Forces
The unique force created by hydrogen bonding gives water some unique properties, which seem to defy the laws of nature. Chemistry - Atoms And Bonding - Learning Points. Hydrogen bonding is a special force of attraction between water...
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Momentum
Explore the reasons why objects can keep moving on their own, and why most of them will eventually stop. Physics - Forces - Learning Points. Momentum is how we quantify a moving object. Outside forces affect momentum. Momentum is...
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Separating Notebooks
We interleave the pages of notebooks to see how hard it is to pull them apart. As the amount of interleaving increases, we see that the force required to separate them also increases. This is because the friction between the notebooks is...
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Cartesian Diver
We make a Cartesian diver using a drinking straw and sticky tack. When the diver is placed in a sealed bottle of water it can be controlled by squeezing and releasing the bottle, which makes it rise and fall within the water. Physics -...
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Hero's Engine
We use a Hero's engine model to show how equal and opposite forces can cause propulsion. Two holes are pierced in a metal bottle and some water is added. This is suspended above a Bunsen burner, and as the water boils and leaves the...
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Settlements and Apartheid
The impacts of racial segregation on settlement patterns in Johannesburg, and the legacy this leaves today. Human Geography - Orientation And Settlements - Learning Points. Apartheid (Afrikaans for 'apartness') was a series of policies...
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Smashing Eggs
We use eggs to show how different rates of deceleration affect the outcome of collisions. One egg is dropped onto a hard surface and breaks. The second egg is dropped onto a soft surface and bounces, as the material slows its...
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Can Crusher
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...
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Aiming for the Outer Planets
The use of direct and indirect proportion in navigating the Voyager spacecraft to the outer planets. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract...
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Plastics and Polymers
Plastics are all made in a similar way, but can be manipulated to have very different functions. Discover how their properties are determined. Chemistry - Chemical Industries - Learning Points. Plastics are synthetic materials called...
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Speed, Velocity, Acceleration
Discover how speed, velocity and acceleration are interlinked but very different measurements of motion. Physics - Forces - Learning Points. The velocity and acceleration of any moving object can be calculated. Speed is the distance...
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Forces of Nature
Introducing the four main forces of nature: gravity, electromagnetic force, weak and strong nuclear forces. Learn why they are fundamental to life on Earth. Physics - Forces - Learning Points. There are four fundamental forces of nature....
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Tsunami
Tsunamis are huge volumes of moving water that become monstrous waves when they hit the coast. What causes them and how do they grow to be so dangerous? Earth Science - Geology - Learning Points. Tsunamis are massive volumes of moving...
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Land Formations
Learn how our planet's landscapes, from mountains to hills, plateaus to plains, have been sculpted over millions of years by powerful geological forces. Earth Science - Geology - Learning Points. The planet's diverse landscape is shaped...