Curated Video
The Truth About Polygraphs: The Science and Limitations of Lie Detectors
This video discusses the use of polygraphs or lie detectors in police interrogations. It explains how the polygraph operates by measuring physiological responses such as heart rate, breathing, blood pressure, and perspiration. However,...
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The Science of Taste: Exploring the Wonders of our Tongue
In this video, the teacher explains the importance of the tongue and its role in our sense of taste. They discuss the basic tastes our tongues can detect, the number of taste buds in our body, and how taste and smell work together to...
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The Fascinating Complexity of the Human Brain
In this video, we learn about the incredible complexity of the human brain, which consists of approximately 170 billion cells, including 86 billion neurons. These neurons communicate through synchronized impulses, creating brain waves...
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The Amazing World of Bones: Discovering the Structure and Function of the Human Skeleton
In this video, we explore the fascinating world of bones in the human body. We learn that babies are born with over 300 bones, which gradually fuse to form a full skeleton of 206 bones by early adulthood. Bones are not just lifeless...
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Exploring Deja Vu: Unraveling the Mystery of the Familiar
In this video, we delve into the intriguing phenomenon of deja vu - that eerie feeling of experiencing something already seen or lived before. Exploring various theories such as dual processing, divided attention, and the hologram...
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Understanding the Anatomy and Function of the Eye
In this video, the teacher explains the structure and function of the eye, as well as the different classifications of iris colors. They also discuss how the eye processes light and forms images, and why some people may need glasses due...
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The World of Pizza: Exploring Unique Varieties and Origins
This video explores the fascinating history and global variations of pizza. From its humble beginnings in ancient Italy to its worldwide popularity, you'll learn about the evolution of toppings and sauces, as well as unique pizza styles...
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The Science and History of Soap: How it Cleans and Protects
In this video, the teacher explains the science behind soap and how it cleans our skin. They discuss how soap is made from fatty acids and salt, and how it emulsifies to mix with water and remove dirt and grime from our skin. The teacher...
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Exploring Images: From Animation to Optical Illusions
This video explores the different types of images and how they are made, including political cartoons, traditional animation, and optical illusions. It highlights the artistry and creativity involved in creating animated images and...
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Exploring the Wonders of the Dead Sea: The Lowest Place on Earth
The video explores the fascinating characteristics of the Dead Sea, known for its high salt content and buoyancy. It highlights the unique experience of visiting this landlocked body of water, where swimming is impossible due to the...
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Understanding Heat Waves: Causes, Impacts, and Preparation
This video discusses the definition and causes of heat waves, as well as the increase in their frequency due to global warming. It provides tips on how to stay cool during a heat wave, emphasizing the importance of staying hydrated and...
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Evaporation
The vaporisation of a liquid that takes place at its surface, as molecules with more energy change from a liquid to gas. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Venus
Where does Venus fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Venus is Earth's closest neighbour. Venus is the hottest planet in our Solar System. Venus spins in the opposite...
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Day and Night - Earth’s Rotation
What is the difference between day and night? How is this governed by the Earth's movement? Physics - Our Solar System - Learning Points. The Sun generates light. The Earth spins on its axis. A full rotation of Earth takes 24 hours. The...
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Saturn
Where does Saturn fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Saturn is the 6th planet from the Sun. Saturn has such a low density that it would float on water. There are...
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Neptune
Where does Neptune fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Neptune is the 8th planet from the Sun. It takes Neptune 165 Earth years to orbit the Sun. Neptune has the...
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Place Like Home: Cassini
The enormous challenge of building a probe capable of travelling over 1 billion kilometres to reach Saturn's moon, Titan. Physics - Universe - Learning Points. Huygens probe was designed by the European Space Agency at a cost of £400...
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Deserts
Deserts are regions that receive very little precipitation each year, but how are they formed? The unique characteristics of the world's deserts, from hot to polar. Earth Science - Weather - Learning Points. Deserts are the driest...
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Venus 2: Surface
The first probe to successfully land on another planet arrived on Venus, where it found one of the most hostile atmospheres known to man. Physics - Our Solar System - Learning Points. In 1971, the Russians succeeded in landing the Venera...
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Thunder and Lightning
Thunderstorms can be an impressive sight, but how are they formed? What is happening deep inside certain clouds to create such huge bolts of energy? Earth Science - Weather - Learning Points. Thunderstorms form in dense tall clouds...
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Global Dimming
Even though the planet is warming, the amount of sunlight reaching the Earth's surface is decreasing. What is causing this, and what effect does it have? Earth Science - Human Impacts - Learning Points. Global dimming is the reduction in...
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Killer Heat Wave
Heat waves form when an area of high pressure becomes stationary over a region. The heat wave that struck Chicago brought hot sunny tropical weather, but its effects were devastating. Earth Science - Weather - Learning Points. A heat...
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Types of Weather: Introduction
The weather systems on our planet are all driven by one thing: air. Discover how our weather is driven by energy from the Sun, affecting the movement of air. Earth Science - Weather - Learning Points. Our weather is a chaotic and complex...
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How Are Rivers Formed?
From source to the sea, this film reveals how rivers are formed, and discovers why the Amazon River came to be so big. Earth Science - Geology - Learning Points. Rivers are vital to life on Earth. Rivers are formed from meltwater from...