Curated Video
Day and Night - Earth’s Rotation
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...
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Moon Measuring
The ingenious system to measure the distance to the Moon involving Apollo astronauts, lasers and a unique mirror system planted on the lunar surface. Physics - Our Solar System - Learning Points. In 1969, the Apollo 11 astronauts left an...
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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...
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How We Balance: Part 2
Learn how the brain, eyes, skin and muscles help us achieve the incredible challenge of balancing. Biology - Being Human - Learning Points. Your brain maintains balance by combining information from you eyes, ears, skin and muscles. Your...
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Factpack: Deadliest Animals
Which animal poses a major threat to humans? You may be surprised. Biology - Adaptation And Evolution - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the...
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Wind Power
Wind power is a clean and renewable energy source. But problems associated with this form of energy mean wind power currently only generates a tiny percentage of our electricity. Earth Science - Earth's Resources - Learning Points. Wind...
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Defensive Plants - Plant Protections
Plants have developed an array of chemical, mechanical and mimicry methods to fight off predators, meaning that they are not as defenceless as they seem. Biology - Plants - Learning Points. Plants have evolved defence mechanisms to ward...
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How We Hear
How our ears hear different frequencies, and how they work with the brain to turn these into sounds which we understand. Biology - Being Human - Learning Points. Sounds are simply movements of air molecules. Our ears are extremely...
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Joints
An introduction to joint movements, including hinge, ball-and-socket and pivot joints. Biology - Human Body - Learning Points. There are three types of moveable, or synovial, joints within the skeleton. Hinge joints allow movement in one...
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Clever Thumbs
Our thumbs are complex instruments; we need big brains to control them. Are they the reason behind the evolution of superior human intelligence? Biology - Human Body - Learning Points. The evolution of our hands and our large brains are...
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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...
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The Race for Absolute Zero: Laser Cooling
Lasers are usually associated with heat. But scientists have instead used them to reach the coldest temperature ever recorded. Could they reach absolute zero? Physics - Energy And Radioactivity - Learning Points. Absolute zero is...
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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...
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Solids, Liquids and Gases
What is the difference between solids, liquids and gases? How does each state behave? Chemistry - Atoms And Bonding - Learning Points. The kinetic theory of matter states that particles are in constant motion and there are forces of...
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What is a Calorie?
Everything we eat contains calories. We need them to function and carry out everyday tasks. How do we know which foods are right to eat and which contain 'empty calories'? Chemistry - Chemical Industries - Learning Points. Calories are...
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Animal Senses
Animals share many of our senses, but can use them in very different ways. Snakes, bats and cheetahs have senses optimised for hunting and migrating in different environments. Biology - Being Human - Learning Points. Different sensory...
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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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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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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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Asellus Blood Flow
We use a microscope to examine the blood flow in the open circulatory system of asellus aquaticus. We are able to see the haemolymph moving through its limbs in different directions. Biology - Human Body - Learning Points. Large...
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Dissection: Leg
We dissect and examine a frog's leg and muscles. The skin is removed and the leg is bent back and forth to see how pairs of antagonistic muscles work. Biology - Human Body - Learning Points. Muscles contract to cause movement. Muscles...
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Underwater Volcano
We create an underwater volcano by placing a conical flask of hot coloured water in a tank of cold water. The hot coloured water rises through the cold, demonstrating convection. Physics - Energy And Radioactivity - Learning Points....
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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...
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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...