Curated Video
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...
Curated Video
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...
Curated Video
The Pacific Flyer
How Richard Branson's team created the world's largest hot air balloon in order to undertake a daring crossing of the Pacific Ocean. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s...
Curated Video
Why Are Eggs Egg-Shaped?
The structural soundness of ovoids and the added properties that make them the ideal shape to hold life in the natural world. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films...
Curated Video
The Noble Gases
The noble gases were one of the last groups of elements to be discovered. From helium balloons to light bulbs, these gases have many uses in the world around us. Chemistry - Periodic Table - Learning Points. The noble gases are found in...
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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...
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Bees and Their Hives
What is it about hexagons that makes them the perfect building blocks for beehives? Discover why they are the best use of space. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math...
Curated Video
What is Sound?
Sounds can vary greatly: extremely quiet or deafeningly loud, high and shrill to low and booming. Why are they so different? Physics - Waves - Learning Points. Sound is a vibration passed to and fro along particles forming a wave. It can...
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Osmosis and Volume
We look at the effects of osmosis on the volume of potato and the appearance of red onion cells. Two cylinders of potato are measured and weighed before one is placed in salt water and the other in fresh water. We can see how osmosis...
Curated Video
Frozen Balloon
We lower a helium-filled balloon into liquid nitrogen to see how the change in temperature affects its volume. When it hits the cool liquid nitrogen, the gas inside contracts and the volume of the balloon decreases. When it is removed...
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Liquid Density
We compare the density of oil, salt water and fresh water using displacement tanks. Equally weighted measuring cylinders are placed into the three liquids and the amount of water displaced is collected for comparison. Physics - Forces -...
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Agar Cube Diffusion
We use coloured agar cubes to see how different shapes change the rate of diffusion. The cubes are made using sodium hydroxide and phenolphthalein indicator to give them a pink colour. When these are added to hydrochloric acid, the...
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Bell in a Vacuum
We look at how a vacuum affects how sound travels. An alarm is set off and placed under a bell jar. The air is removed from the jar to create a vacuum. We can still see the hammer of the alarm clock moving, but cannot hear the sound....
Curated Video
Meanders and Oxbow Lakes
Meanders and oxbow lakes are found in the middle course of a river. Discover how a meander forms and how this process can lead to an oxbow lake. Earth Science - Geology - Learning Points. At its middle course, a river gathers water...
Curated Video
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...
Curated Video
How Origami Changed the World
How the ancient art of paper-folding solved some of the geometric puzzles that had plagued mathematic minds for millennia. Maths - Measurement A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context...
Curated Video
Rates of Reaction: Basics
Knowing the rate of a chemical reaction can be very important, particularly for industry. Discover which factors indicate the rate of a chemical reaction, and how you can change it. Chemistry - Reactions - Learning Points. Some reactions...
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Volume: Counting Stars
How many stars are there in the Universe? Astronomers calculate it the same way they would grains of sand on a beach... using volume. Maths - Measurement A Twig Math Film. Reinforce and extend the learning required by the curriculum....
Curated Video
Density - Mass per Volume
Mass per unit of volume. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and key curriculum...
Curated Video
Volume – Pixelate
What is it? ... It's a church bell! Physical processes - Sound - Volume A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.
Curated Video
Volume – What's that noise?
What's that noise? ... It's a peacock. Physical processes -Sound - Volume A Twig Tidbit Film - What’s that noise? The children have to identify an object from its sound alone.
Curated Video
Hearing loss
Discover how exposure to high-volume sounds can damage hearing. Physical processes - Sound - Dangers of sound Learning Points High volume sounds can damage ears and cause hearing loss. Sound levels are measured in decibels. Ear damage...
Curated Video
What is a solid?
What properties do solids, liquids and gases have? Material processes - Solids, liquids and gases - Solids Learning Points Solids have a fixed shape that can only be changed by external force. Solids have a fixed volume. The molecules in...
Curated Video
Condensation and freezing
Why do water drops form on cold windows and why does water freeze? Material processes - Solids, liquids and gases - Changes of state Learning Points Condensation is the change of state from gas to liquid. Freezing is the change of state...