Science ABC
What Is Tempered Glass? How Does It Break?
Tempered glass is stronger than regular glass and can withstand higher temperatures. It is also manufactured in a way that causes it to break into smaller pieces, which is safer than regular glass shattering into large shards. Unlike...
Science ABC
Science of Glass Making: How is Glass Made?
Glass is made by heating sand (mostly composed of silicon dioxide) until it melts and turns into a liquid at a high temperature of around 1700° Celsius. When the molten sand is allowed to cool, it becomes an amorphous solid, featuring...
Science ABC
Palmar Grasp Reflex: Why Are Babies Grip So Strong?
Babies have a tight grip because it is a bodily reflex known as the Palmar Grasp Reflex (or simply the grasp reflex), which is typically observed in infants. You can elicit the grasp reflex by stroking your finger or any other object in...
Science ABC
How Can Mobile Phones Make ‘Emergency Calls’ When There’s No Network Coverage?
Cell phones require network coverage to make calls. However, if the usable strength of the mobile network of your service provider (the manufacturer/company of the SIM card that you are using) is not good enough at the place where you’re...
Science ABC
Why Do Clothes Feel Stiff When Air Dried But Soft Coming From the Dryer?
The difference between air-drying and tumble-drying is that air-drying keeps the cellulose fibers from reforming their hydrogen bonds more effectively, which makes the towel feel a bit fluffy. Tumble drying, on the other hand, causes the...
Science ABC
Why Do Babies Have More Bones Than Adults?
A baby is born with around 300 bones, whereas a grown adult has 206 bones. Cartilage, a rubber-like padding that shields the ends of long bones at the joints, is the reason behind this. Babies are born with more cartilage (than bone),...
Science ABC
Why Are pH Values Only In A Range Of 0-14?
The pH scale is used to determine whether a substance is acidic or basic, and to calculate how strong a chemical it is. A pH value is a number that ranges from 1 to 14 for most common chemicals, with seven being the middle or neutral...
Curated Video
Strong acid
A strong acid is one that is fully ionised in solution. 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...
Curated Video
Gravity - Attractive Force of Mass
An attractive force that acts between all matter that has mass, and is proportional to mass. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Giant covalent structure
A substance in which a large number of non-metal atoms are covalently bonded in a continuous network. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Chemical bond
Bonds between atoms that allow the formation of chemical compounds. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Coastal Processes: Waves
Coastal features around the world vary hugely. How do waves contribute to shaping coastlines? Earth Science - Geology - Learning Points. Waves are created by wind. Waves vary in size and strength. Waves break in shallow water....
Curated Video
Factpack: pH Scale
Explore the pH scale, and discover whether a solution is acidic, alkaline or neutral. Chemistry - Reactions - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention...
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
Carbon: Introduction
Carbon occurs naturally in four different forms. Discover how they differ and why? Chemistry - Atoms And Bonding - Learning Points. Carbon is present in all living organisms. Carbon in its elemental form appears as four distinct...
Curated Video
Metallic Bonding
Metals can be strong and hard, or they can be flexible. It's the special behaviour of ions that give metals their different properties. Chemistry - Atoms And Bonding - Learning Points. Metal atoms bond together and create giant lattice...
Curated Video
How Did Amphibians Evolve?
Over millions of years, fish species evolved to leave water and survive on land, producing the characteristics shared by all amphibians. Biology - Animal Kingdom - Learning Points. The coelacanth is a lobe-finned fish that evolved 400...
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
Metals in Medicine
Metals are used in the human body for a wide range of medical purposes. Discover which metals are used and what properties they have that can help to heal us. Chemistry - Periodic Table - Learning Points. Titanium, stainless steel and...
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
MRI
MRI machines are now commonly used in hospitals to build amazing images of inside our bodies. Discover how magnets allow them to do this. Physics - Electricity And Circuits - Learning Points. MRI machines use magnets to take images of...
Curated Video
Urea
An organic compound containing nitrogen that plays an important role in animal metabolism, and is excreted in the urine of mammals. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Capillary Action
Water is added to dry and bent matchsticks to let us see capillary action at work. The wood absorbs the water causing the matchsticks to straighten. Biology - Plants - Learning Points. Water is a polar molecule because the electrons are...
Curated Video
Why Do Shares Change Price?
What are shares, and what affects their price? Discover why share price is not only dictated by monetary value, and why this makes trading a risky business. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the...