Curated Video
Smog - City Air Pollution
From 'smoky fog', smog is a form of pollution often associated with cities. 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
Fahrenheit (°F)
A temperature scale, used largely in the USA, on which water freezes at 32 degrees and water boils at 212 degrees. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
pH
The pH scale measures the acidity or alkalinity of a 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...
Curated Video
Continental crust
The uppermost layer of the Earth that forms the continents and coastal sea floor, sitting on top of a layer of denser rock called the mantle. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
What is GPS? - Satellite Navigation
GPS satellites pin-point locations on Earth. How has this technology enhanced our lives, from military systems to social applications? Physics - Universe - Learning Points. GPS stands for Global Positioning System. GPS uses 24 satellites...
Curated Video
Beyond Human Hearing
Humans can only hear a certain range of sound frequencies. Discover the sounds we can't hear and why they can be useful. Physics - Waves - Learning Points. The frequency of sound waves determines whether we can hear them. High-frequency...
Curated Video
Nanotechnology: What is It?
Still in its early stages, nanotechnology has the potential to change our world. What is it and how could it be used in the future? Chemistry - Atoms And Bonding - Learning Points. Nanotechnology is engineering on the smallest scale....
Curated Video
Fold Mountains: Formation
Where are fold mountain ranges found on our planet? And how do the movements of tectonic plates affect their growth? Earth Science - Geology - Learning Points. A Fold mountain forms over millions of years by a process called orogeny....
Curated Video
What Makes Up the Electromagnetic Spectrum?
From radio waves to gamma rays, the electromagnetic spectrum is useful in different ways. How does this radiation differ and how can they be used? Physics - Waves - Learning Points. Electromagnetic radiation exists along a continuous...
Curated Video
Predators and Prey
The adaptations of predators and prey are vital for their survival, and help to drive the evolution of species. Biology - Adaptation And Evolution - Learning Points. Predators are animals that kill other animals for food - their prey....
Curated Video
Acidification of Water
We use a drinking straw, some water and universal indicator to show that breathing out creates acid. Universal indicator is added to the water to show its pH value. When we blow into the water the indicator changes colour showing that...
Curated Video
How Do Snowflakes Form?
A blizzard creates a blanket of snow. Look closer and the true beauty of individual snowflakes can be seen. How are different shapes of snowflakes formed and why are they always perfectly symmetrical? Chemistry - Atoms And Bonding -...
Curated Video
Fluorescent
A fluorescent substance is one that absorbs light at one wavelength and re-emits the energy as light at another wavelength, usually longer, a phenomenon called fluorescence. A Twig Science Glossary Film. Key scientific terms defined in...
Curated Video
Magma
Molten rock below the surface of the Earth. 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...
Curated Video
Microwave
Electromagnetic radiation with a wavelength between a few millimetres to about a metre, in between radio waves and infrared. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Visible light
The portion of the electromagnetic spectrum that our eyes can see. 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
Journey through the ear
Journey through an ear to discover how we hear sound... Physical processes - Sound - How do we hear? Learning Points The eardrum transmits vibrations to the ossicles. The cochlea sends signals to the auditory nerve. The auditory nerve...
Curated Video
Ultrasound - Dolphin Communication
Learn how dolphins use ultrasound to communicate. Physical processes -Sound - How do we hear? Learning Points Sound travels faster in water than in air. Ultrasounds are too high pitched for humans to hear. Dolphins communicate using...
Professor Dave Explains
Subphylum Crustacea Part 1: Form and Function
Continuing through phylum Arthropoda, we read the clade Crustacea. This includes many familiar animals like crabs and lobsters, as well as many that will be far less familiar. Let's start out by getting a sense of the general form and...
Great Big Story
The enigmatic golden mantella, madagascar's tiny jewel
Discover the critically endangered Golden Mantella, a vibrant amphibian unique to Madagascar.
Curated Video
Mriya: Largest Plane in the World
The largest plane in the world is the Mriya more formally known as the Antonov 225. Originally designed to carry the Soviet Union's space shuttle, it now serves as a commercial cargo plane, capable of carrying up to 250,000 kilograms of...
Curated Video
Inside the USS Stennis
Modern aircraft carriers are used by the dominant military nations to extend air power far from the homeland.
Wonderscape
Global Owl Species
Discover the diverse owl species found across the world, from the heart-faced barn owl to the giant Great Horned Owl. Learn about the unique characteristics and habitats of owls in North America, Asia, and Africa. Understand the...
Curated Video
Machine Learning: Random Forest with Python from Scratch - For Loop
Let's understand the for loop and how it is used to iterate a sequence, which is a list, tuple, string, dictionary, or set. This clip is from the chapter "Introduction to Python" of the series "Machine Learning: Random Forest with Python...