Curated Video
Centre of Gravity: Weight Balance Point
The point from which the whole weight of an object appears to act. 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...
Curated Video
Base (biology)
In the DNA double helix, the links between the two strands are formed by pairs of much smaller molecules called bases. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Acid
A compound which dissolves in water to form a solution with a pH of less than 7. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Base (chemistry)
A substance that reacts with an acid to form a salt and water. 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...
Curated Video
The Romans and Numerals
Though they were great engineers, the Romans were terrible mathematicians. They relied on the knowledge of their Greek slaves, and rather than developing maths, came up with one of the most awkward numerical notation systems known to...
Curated Video
Cubist Art
How Cubist artists used geometry to represent a form in its purest way using geometric shapes such as the cone, cylinder and sphere. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s...
Curated Video
Submarine Communication
We have sent messages around the world and into space, but communicating underwater remains a challenge. How and why do radio waves allow us to talk to submarines? Physics - Waves - Learning Points. Salt water absorbs sound waves making...
Curated Video
Acids and Alkalis: Part 2
Alkalis and acids can be neutralised to great and varied effect. For example, it is neutralisation reactions that help us breathe underwater or cure indigestion. Chemistry - Reactions - Learning Points. A neutral solution is pH 7 Sodium...
Curated Video
Why Do We Count in Tens?
Find out why our metric system is based on the number ten. Is it the best number to count on? Or could the reason be more biological than mathematical? Maths - Number A Twig Math Film. Reinforce and extend the learning required by the...
Curated Video
The Richter Scale
Why the magnitude of earthquakes, measured on the Richter scale, increases so quickly – because the scale is logarithmic. Maths - Number A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three...
Curated Video
Building the Pyramids
The use of 3-4-5 triangles in creating uniform right-angles and angles of incline in the ancient Pyramids of Egypt. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show...
Curated Video
The Incredible Strength of Ants
Why are tiny ants considered the strongest creatures in the world? An introduction to the square-cube law and why muscle mass (length3) will always outstrip strength (length2). Maths - Number A Twig Math Film....
Curated Video
Acids and Alkalis: Part 1
The properties of strong acids and alkalis can be extremely harmful. Where do we find them, and how can we tell how acidic or alkaline a substance is? Chemistry - Reactions - Learning Points. Bases neutralise acids, and if a base...
Curated Video
Binary: What Is Binary?
Learn how the binary base system works, and how to symbolise any number using just two digits. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in...
Curated Video
Measuring Music
We use a sounding board called a sonometer to investigate how the pitch of sound changes when the length of wire being plucked changes. We change the position of a moveable bridge to change the length of the wire and discover that...
Curated Video
Bouncing Eggs
We use vinegar to remove the shells from eggs without breaking them. Two eggs are placed in a beaker of vinegar, but one is half coated with clear nail polish. The exposed shells dissolve over time and the eggs swell as more water moves...
Curated Video
Ferrofluids
We compare the properties of three iron mixtures: iron and water, iron and oil and a ferrofluid - a mixture of compounds containing iron and oil. First, we look at how iron filings behave when mixed with water and then oil. We then hold...
Curated Video
Inflating Glove
We inflate a rubber glove using the gas produced during a neutralisation reaction. Bicarbonate of soda is added to vinegar in a beaker covered by a rubber glove and it expands. The gas is used to extinguish a flame, showing that it is...
Curated Video
Buffer
A substance that maintains a solution in a narrow range of pH. 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...
Curated Video
Salt
In chemistry, an ionic compound containing positive metal ions and negative non-metal ions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
The world's highest hospital
Venture to the world’s highest hospital, at Mount Everest's Base Camp. People and places - Physical geography - Mountains Learning Points There is less oxygen available to breathe at the top of a mountain. The Earth's crust is divided up...
Bedtime History
Jackie Robinson For Kids
Learn about the famous Brooklyn Dodgers baseball player, Jackie Robinson, and his struggle against racial segregation and discrimination throughout his life.
Bedtime History
Area 51 for Kids | Bedtime History
Learn about the mysterious test site of the United States Military at the Nevada Test Site, from the design of the U-2 spy plane to the SR-71.
Curated Video
Leaning Tower of Pisa for Kids | Bedtime History
Uncover the intriguing history of the Leaning Tower of Pisa in this captivating history episode! Explore the architectural marvels and the fascinating story behind one of the world's most iconic landmarks. Learn about the construction...