Discover why infinity puzzled the Greeks, and why this led to the discovery that there is more than one type of infinity. Maths - Algebra A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context...

Discover how speed, velocity and acceleration are interlinked but very different measurements of motion. Physics - Forces - Learning Points. The velocity and acceleration of any moving object can be calculated. Speed is the distance...

Introducing the four main forces of nature: gravity, electromagnetic force, weak and strong nuclear forces. Learn why they are fundamental to life on Earth. Physics - Forces - Learning Points. There are four fundamental forces of nature....

Heptathlon scoring involves converting distance, time or height measurements into a universal points system. The result? A complex scoring system that relies on algebra. Maths - Algebra A Twig Math Film. Reinforce and extend the learning...

How the orbit of the planets is dictated by mass and the force of gravity. Physics - Our Solar System - Learning Points. The curved path of one object around another is its orbit. Objects orbit due to the effects of gravity. The...

Born out of research into RADAR in World War Two, ultrasound has become one of the most important medical inventions. What is it, and how does it work? Biology - Being Human - Learning Points. Ultrasound was developed by Ian Donald in...

There are only six basic types of machine. Discover more about planes, wedges and screws: what are they and why are they useful? Physics - Forces - Learning Points. Machines based on the ideas of Archimedes make work easier. An inclined...

A delicate balancing act between the Sun and Earth makes ours the only known life-bearing planet in our Solar System. Physics - Our Solar System - Learning Points. Earth is the only planet with liquid water. If a planet is too close to...

Scientists believe there is a supermassive black hole 26,000 light years away at the centre of our Galaxy. But how do they know, when they can't see it? Physics - Universe - Learning Points. Black holes are formed when massive stars...

An optical device that uses lenses or mirrors to magnify and observe distant objects. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

A stream of charged particles, mainly electrons and protons, emitted from the Sun's outer atmosphere at up to 900 kilometres per second. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...

True or false ... It takes eight and a half minutes for light from the Sun to travel to our planet?
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It takes eight...

Discover how bike gears make pedalling easier.
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Discover how techniques for mapping the seas have changed throughout history.
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The technique of measuring the sea's depth...

इस वीडियो में हम यह जानने की कोशिश करेंगे कि कौन तेज है: उसेन बोल्ट या फार्मूला वन कार। हम दूरी और समय का उपयोग करके गति की गणना करेंगे। वीडियो में बताया गया है कि गति की गणना कैसे की जाती है, जिसमें दूरी को समय से विभाजित किया...

The inductive effect can also influence a molecule’s dipole moment, which measures the separation of charges within a molecule. Electron-withdrawing groups create a stronger dipole by pulling electron density away from less...

Delve into the mysteries of how Stonehenge was constructed over 1,500 years by Neolithic builders. Learn about the possible methods used to transport massive bluestones over 180 miles, shape the sarsen stones, and assemble the iconic...

By the end of this video, the student will be able to: Calculate the distance between two points on a straight line.9761

By the end of this learning object, the student will be able to: Describe the planet Earth.28766

By the end of this learning object, the student will be able to: Identify the Celestial body and the Galaxy as the universe unit.14440

By the end of this learning object, the student will be able to: Identify translation on the Cartesian plane using life applications.14442

By the end of this learning object, the student will be able to: Find a number lying in the middle between two numbers.3210

By the end of this learning object, the student will be able to: Recognize the relationship between distance and light intensity.13613

This video explains how to use map scales to measure distance and understand the relationship between map distance and real-world distance. Learn how different maps—ranging from a city block to the entire planet—use scales for...