Curated Video
Refraction
The change in direction of a wave caused by its change in velocity, as it moves from one medium into another. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Motor effect
The force experienced by a current-carrying wire when placed within a magnetic field. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Pangaea
The supercontinent that included all of Earth's land surface about 200-300 million years ago. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Earthquake
A shaking of the Earth's surface due to a release of energy within the crust that generates seismic waves. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Migration
The movement of organisms from one place to another at certain times of the year, or at certain points in their life cycle. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Coastal Processes
A closer look at the three key processes that shape our coasts. What are they and what effects do they have? Earth Science - Geology - Learning Points. Our coastlines are constantly being re-shaped by three key processes. Erosion -...
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What is an Earthquake?
The earth below our feet is continually moving. How do changes underground lead to effects on the surface, and what happens to change these movements into devastating earthquakes? Earth Science - Geology - Learning Points. Movement of...
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Marine Renewables
Wave and tidal power are a developing form of renewable energy. How do they work and what makes them desirable alternatives to other forms of renewable energy? Earth Science - Earth's Resources - Learning Points. The Atlantic Ocean and...
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How We Balance: Part 1
It can take years before our limbs and brain work together well enough to achieve good balance. What role do our ears play in helping us to meet this incredible challenge? Biology - Being Human - Learning Points. Our sense of balance is...
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Salt: Food Preservative
Salt was discovered thousands of years ago as a way of preserving food. How does it do this? And what else does salt preserve? Chemistry - Chemical Industries - Learning Points. Food rots because of bacteria and fungi. Salt is an...
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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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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...