SciShow
Here's What Kevlar and Your Smartphone Have in Common
You might not believe it, but the same chemistry that brought us bulletproof vests and modern sailing sails also gave us the technology to build your smart phone. But that doesn’t mean these chemists were thinking about these...
Bozeman Science
Metallic Solids
In this video Paul Andersen explains how metallic solids form when delocalized electrons hold the positive nuclei in an electron sea. This model helps to explain the properties of metals like conductivity, shiny appearance, malleability,...
Curated Video
The History and Science of Boats: From Magellan to Modern Ships
This video explores the importance of boats in Magellan's expedition and the principle of buoyancy that allows them to float. It explains how even massive steel ships can remain buoyant due to the air inside them. The video also mentions...
Curated Video
Landmarks - Hadrian's Wall
HADRIAN S WALL HADRIAN'S WALL IS ONE OF ENGLAND'S MOST STUNNING AND MEMORABLE MONUMENTS. IT WAS BUILT IN AD 122 TO SEPARATE THE ROMANS FROM THE BARBARIANS. THE WORLD HERITAGE SITE TAKES IN SOME OF THE MOST RUGGED MOORLAND AND RUNS...
Curated Video
Landmarks - Malaysian Domes
MALAYSIAN DOMES WHAT DO A RACING YACHT AND A MOSQUE DOME HAVE IN COMMON? IN MALAYSIA, THEY ARE MADE OF THE SAME MATERIAL - FIBRE GLASS AND OTHER COMPOSITE MATERIALS. MOSQUE DOMES AND MINARETS ARE PROMINENT FEATURES IN MALAYSIAN CITIES,...
Curated Video
Alloy
A mixture containing a metal element, made by melting the different elements together. 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 Elements: Iron
Iron is crucial in many areas of life: it is found in our blood, as well as being used to build bridges. Chemistry - Periodic Table - Learning Points. Iron is one of the most common element on Earth. Iron is found in living organisms....
Curated Video
What Are Electromagnets?
How do electromagnets differ from permanent magnets, and what are they used for? Physics - Electricity And Circuits - Learning Points. An electromagnet is created by running an electrical current through a coil of wire. An electromagnet...
Curated Video
Factpack: Pressure and Altitude
Changes in pressure at different heights, from outer space to the depths of the ocean. Physics - Forces - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at...
Curated Video
Alloys
What exactly are alloys? What is it about their properties that make them so useful for a huge variety of purposes, from construction to jewellery? Chemistry - Periodic Table - Learning Points. Alloys are metals mixed with other...
Curated Video
Chernobyl Disaster
In 1986, the Chernobyl nuclear power plant exploded. What caused the explosion and why has Chernobyl become a lasting reminder of the dangers of nuclear power? Earth Science - Earth's Resources - Learning Points. The world's first...
Curated Video
Rusting Nails
We investigate the conditions needed for rust to form. Four iron nails are placed under different conditions. One is half submerged in water. Another is completely submerged in boiled water. One is half submerged in salt water. The final...
Curated Video
Ingenhousz's Heat Conductors
We use a metal box holding rods of different materials to test their ability to conduct heat. The box is filled with boiling water and a paperclip is attached to the end of each rod using petroleum jelly. As the heat moves through the...
Curated Video
Mass of Wire Wool
We look at how the mass of wire wool changes when it is burned. Wire wool is almost 99% iron. When we burn it, it combines chemically with oxygen from the air to form iron(III) oxide. The mass of the product is more than the mass of the...
Curated Video
Nuclear Waste
Nuclear fission is the process used in nuclear power plants, which creates radioactive nuclear waste that is hazardous to humans. Discover how this nuclear waste is disposed of and stored. Earth Science - Earth's Resources - Learning...
Curated Video
Making steel
Find out how steel is made. The world around us - Exploring materials - How do we get materials? Learning Points Materials can come from the Earth, animals and plants. Humans can turn raw materials into finished product. A Twig Junior...
Curated Video
Building a home
Find out why builders have to think very carefully about which materials to use when building a house. The world around us - Exploring materials - Building a home Learning Points All materials can be described in terms of their...
Curated Video
Natural and synthetic
Find out the difference between natural and synthetic materials, and how they are used. Material processes - Classifying materials - Natural and artificial materials Learning Points Natural materials can come directly from the Earth or...
Curated Video
Magnetism
Find out how magnetic and non-magnetic materials are separated at a junkyard using a giant magnet. Physical processes - Electricity and magnetism - Magnetism Learning Points Magnetism is a force that acts upon magnetic material. A...
Curated Video
Properties of materials
Discover how materials are grouped by their properties and how this is useful in everyday life. Material processes - Classifying materials - Properties of materials Learning Points Materials can be grouped by properties. Properties are...
Flipping Physics
How Steel Boats Float: A Buoyant Force Demonstration!
Learn why steel boats float with this quick buoyant force demonstration! Discover how the average density of steel boats is less than water, allowing them to stay afloat.