Curated Video
Cheetah
The cheetah is the fastest land animal on Earth. Discover how its skeleton has evolved to make it ideally suited for speed. Biology - Animal Kingdom - Learning Points. The cheetah's supple back bones and loose hip and shoulder joints...
Curated Video
Why Do I Get Travel Sick?
Your body can get confused by different incoming signals. A look at how the ears, eyes, organs and muscles combine to detect motion, and what happens when they're out of sync. Biology - Being Human - Learning Points. Our brain relies on...
Curated Video
Factpack: Primitive Species
Meet the species which have not evolved for millions of years. Why have they stopped evolving? Biology - Adaptation And Evolution - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or...
Curated Video
Time Travel
Is it possible to travel through time? Do the laws of physics make it impossible? How could it be achieved? Physics - Waves - Learning Points. Although the science is theoretical, the laws of physics do not rule out time travel. Einstein...
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Echolocation: Dolphins
Dolphins use of sound as a navigational tool is essential to their survival. Discover how they produce these sounds and use them to learn about their environment. Physics - Waves - Learning Points. Dolphins, like most marine species, use...
Curated Video
Rounding: Snails vs Rockets
How accurately should speed be denoted? Would you round a snail's speed to the nearest whole unit? Or give a rocket's speed to five decimal places? Why accuracy, rounding and significant figures are useful. Maths - Accuracy And Proof A...
Curated Video
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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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...
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Place Like Home: Inside a Probe
Learn how scientists overcame huge challenges to land a probe on Saturn's moon, and why Titan is of special interest to life on Earth. Physics - Universe - Learning Points. The Cassini-Huygens probe took seven years to travel over 1...
Curated Video
Predators and Prey
The adaptations of predators and prey are vital for their survival, and help to drive the evolution of species. Biology - Adaptation And Evolution - Learning Points. Predators are animals that kill other animals for food - their prey....
Curated Video
Decimal Places: Photofinish
The story of a 60m sprint which, without decimals, would have resulted in a dead-heat. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action...
Curated Video
Hurricanes
Hurricanes are renowned for their destructive power and the devastation they leave behind. But how do they form and where? Earth Science - Weather - Learning Points. Hurricanes are tropical storms with constant wind speeds. Hurricanes...
Curated Video
How Did Saturn Get Its Rings?
Since Galileo first sighted Saturn, scientists have been baffled by its beautiful rings. What are they made of and where did they come from? Physics - Our Solar System - Learning Points. Saturn's rings were first discovered by Galileo in...
Curated Video
Moore's Law
Computing technology has developed at a phenomenal rate in recent decades – what would once fill an entire room can now be held in the palm of your hand. So how was Moore's Law able to predict this over 50 years ago? Physics -...
Curated Video
Galtür: The Perfect Storm
The worst avalanche in 40 years destroyed countless buildings and killed many people in this Austrian village, but it was factors 4,000 kilometres away that caused this disaster. Earth Science - Weather - Learning Points. Galtur is a...
Curated Video
Speed of Sound
Sound waves move through different mediums at different speeds, but why is this? What factors affect the speed of sound? Physics - Waves - Learning Points. Speed of sound depends on many different factors. Temperature, elasticity and...
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Shockwaves: The Damage Caused by Supersonic Speeds
Discover the damage caused by shockwaves and how they are created by supersonic speeds. Physics - Waves - Learning Points. Waves of high pressure are produced when something moves through a medium at supersonic speed. At supersonic...
Curated Video
Precipitate Formation
We add potassium iodide and lead(II) nitrate to the opposite sides of a Petri dish filled with water to see how quickly they diffuse. When added to the water, the chemicals spread through the dish and when they meet they react to form...
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Orange Tornado
We use mercury(II) chloride solution and potassium iodide to demonstrate a precipitation reaction. Saturated potassium iodide solution is placed on a magnetic stirrer and the speed is set so that a vortex is created. Mercury(II) chloride...
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Elephant's Toothpaste
We create a rapidly expanding column of foam by mixing chemicals. Hydrogen peroxide and detergent are added to potassium iodide and food colouring to set off a reaction that creates vibrant expanding foam. Chemistry - Reactions -...
Curated Video
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...
Curated Video
Fractions: Slow Motion
Discover how video creates movement from still images, and how 'frame rate' affects what we see. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract concepts in...
Curated Video
Collision Theory
Discover that altering the number of successful collisions between particles is key to changing the rate of chemical reactions. How this can be manipulated? Chemistry - ReactionsLearning Points. New substances are made when particles...
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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...