The evolution of standard measurements from body parts to precise, universal measures. Maths - Measurement A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in...

Dolphins use of sound as a navigational tool is essential to their survival. Discover how they produce these sounds and use them to learn about their environment. Physics - Waves - Learning Points. Dolphins, like most marine species, use...

Find out why our metric system is based on the number ten. Is it the best number to count on? Or could the reason be more biological than mathematical? Maths - Number A Twig Math Film. Reinforce and extend the learning required by the...

We can see our surroundings because of light energy. Whether light waves are being emitting from a source or being reflected, this form of energy is vital to life on Earth. Physics - Waves - Learning Points. Light is an energy that...

Find out how labyrinths and mazes are created, and how to navigate your way through each. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract concepts in action in...

In the 1970s, launched aboard a space probe was what is considered one of the most important scientific diagrams ever created. If found by extraterrestrial life, the plaque explains details about the human race and where we are in the...

Learn why electron shells are responsible for the properties of elements, and whether they are stable or have violent reactions. Chemistry - Atoms And Bonding - Learning Points. An element's reactivity is determined by the number of...

Solar and lunar eclipses are spectacular phenomena which captivate people around the world, but what causes them? Physics - Our Solar System - Learning Points. A lunar eclipse occurs when the Earth blocks sunlight from reaching the Moon....

Investigates different types of spiral, from logarithmic to Archimedean, how each is formed and where they are found in nature. Maths - Space A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math...

The battle between famous 19th century inventors Edison and Tesla for a slice of America's electricity market, and the lengths they went to in order to secure it. Physics - Electricity And Circuits - Learning Points. Thomas Edison...

How air traffic controllers use position vectors to ensure that aeroplanes can fly safely in crowded skies. Maths - Algebra A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract...

Witness the action at positive and negative altitudes as predators from above and below hunt millions of sardines off the coast of Africa. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum....

Animals share many of our senses, but can use them in very different ways. Snakes, bats and cheetahs have senses optimised for hunting and migrating in different environments. Biology - Being Human - Learning Points. Different sensory...

Recreating the mirror lines of the Taj Mahal using coordinates to investigate reflective symmetry. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract concepts in...

The use of direct and indirect proportion in navigating the Voyager spacecraft to the outer planets. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract...

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...