A series of reactions, each the result of a preceding reaction. 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...

The non-metal elements are found to the right of the Periodic Table. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

As demand for electricity rises, supply can become jeopardised. With electricity difficult to store, how to power companies manage this delicate balancing act? Earth Science - Earth's Resources - Learning Points. Electricity producers...

Everything our brain does, from controlling movement to conscious thought, is achieved by the firing of electrical signals called neurons. Biology - Being Human - Learning Points. Everything our brain does is achieved by electrical...

Wave and tidal power are a developing form of renewable energy. How do they work and what makes them desirable alternatives to other forms of renewable energy? Earth Science - Earth's Resources - Learning Points. The Atlantic Ocean and...

Whether it's a faulty appliance or a bolt of lightning, an electric shock can be fatal. How can we avoid electric shocks? Physics - Electricity And Circuits - Learning Points. If humans become part of an electric circuit they will...

What are circuits and why do we need them? What happens if you break a circuit? Physics - Electricity And Circuits - Learning Points. Circuits are composed of a voltage source and components. The current in a series circuit is the same...

Great lengths are taken by energy companies to keep our electricity supply on. To spot any potential power cuts, they use sophisticated equipment, and take to the skies. Physics - Electricity And Circuits - Learning Points. Networks of...

Where does the electricity we use come from? Are we damaging our environment just to keep the lights on? Earth Science - Earth's Resources - Learning Points. Electricity is essential to our society and the way we live. Electricity...

Gold can be found in many forms and has been used as currency for centuries. But what properties does it have that make it so valuable? Earth Science - Geology - Learning Points. Gold occurs naturally in many distinct forms. Native gold...

Learn about the noble gas, neon, and its uses. Chemistry - Periodic Table - Learning Points. Neon is a colourless gas. When electricity is passed through neon, it produces a bright orange-red light. Neon is a noble gas and is inert,...

Wind power is a clean and renewable energy source. But problems associated with this form of energy mean wind power currently only generates a tiny percentage of our electricity. Earth Science - Earth's Resources - Learning Points. Wind...

The construction of the then-largest dam in the world: how was the construction of the dam achieved and what is its legacy today? Earth Science - Earth's Resources - Learning Points. The Hoover Dam was built in the 1930s in Nevada, USA,...

The story of one young guitarist, who befell the dangers of electricity. Why is electricity dangerous to humans? And is it only voltage which can be deadly? Physics - Electricity And Circuits - Learning Points. An electrical current of...

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...

Welcome to the home of the Carbon family. Discover how much carbon they - and many average families - use every single year. Human Geography - A Changing World - Learning Points. 50% of CO₂ produced by humans comes from...

Large-scale nuclear fusion is one of the ultimate goals of science which has yet to be achieved. How does nuclear fusion work and is a future likely in which we can reproduce the power of a star on Earth? Earth Science - Earth's...

What is electricity? How is it created, and what makes it useful? Physics - Electricity And Circuits - Learning Points. Electricity is a flow of charge. The flow of moving electrons is known as the electric current. Voltage is the amount...

The Sun has the potential to meet all our energy needs, if only we could harness it efficiently. Why is it so difficult to efficiently convert and store this energy? Earth Science - Earth's Resources - Learning Points. The Sun provides...

Discover how doctors use electricity in the human body to stimulate and suppress muscles - and save lives. Physics - Electricity And Circuits - Learning Points. Electricity is a useful tool in medicine and saves lives. An electric shock...

A demonstration of how hi-fi speakers use a clever combination of electronics and magnetism to convert electrical impulses into sound waves, which our brain then interprets as music. Physics - Electricity And Circuits - Learning Points....

Power loss affects electricity supply, especially to homes far from power stations. Why is power lost, and how is electricity effectively transported over long distances? Physics - Electricity And Circuits - Learning Points. Direct...

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 is this powerful and controversial energy source produced? Do the advantages outweigh the dangers of nuclear power? Earth Science - Earth's Resources - Learning Points. Nuclear power is created using uranium, and small amounts can...