For thousands of years, water was thought to be an element. That is, until some of the greatest chemists in the world managed to crack it open.

As we look towards longer missions to the Moon, the shear amount of resources needed to survive becomes a much bigger question. Without space semi-trucks to haul life-giving resources to astronauts, can we utilize the Moon’s barren...

Human-robot hybrids are advancing quickly, but the applications aren't just for complete synthetic humans. There's a lot we can learn about ourselves in the process.

This week we are exploring alternative energy sources. We'll look at how biomass can be burned as a fuel source, how hydrogen can be used in a fuel cell to generate electrical power, and how nuclear fission provides power to the grid....

Howcast - Get the lowdown on all the ways to remove pesky facial hair—from the brand new to the tried and true.

Howcast - Learn the pros and cons of electrolysis from Completely Bare owner (and former Real Housewife of New York City) Cindy Barshop in this Howcast video.

Pupil outcome: I can identify and justify the material and process used for a metal product. Key learning points: - There are two main stages in the sourcing of metal: mining and extracting. - There is an environmental impact to...

Astronauts onboard the ISS get their breathable oxygen in two main ways - through systems onboard the ISS that generate breathable oxygen and through resupply missions that deliver breathable oxygen to the ISS. There is plenty of oxygen...

While it is certainly enticing when a company or individual claims that they have developed technology that can power cars purely on the water when it comes to science, there is a fundamental restriction to this very idea. Simply put,...

An electrical conductor that connects to a non-metallic part of a circuit.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

The process of using a direct electric current passing through a conductive liquid to drive a chemical reaction.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...

The process of deriving metals from their naturally-occurring ores.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Coating an object with a metal using electrolysis.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

A substance that has been converted to liquid form by heating.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

An electrolytic cell is a system that breaks down chemical compounds by electrolysis.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Electrolysis is fundamental to industrial processes. How was it discovered, how does it work and what are its uses? Chemistry - Reactions - Learning Points. The Chemist Humphry Davy developed the reaction we now call electrolysis....

The discovery and uses of reactive metals throughout history, and how their uses have defined the period in which they were discovered. Chemistry - Periodic Table - Learning Points. The reactivity series ranks the chemical reactivity of...

We use electrolysis to break water molecules down into hydrogen and oxygen. This is done using the Hoffman apparatus. Water is added to the apparatus along with some dilute sulfuric acid. When a current is passed through the water,...

We extract copper metal from copper chloride solution using electrolysis. The electric current causes copper to form at one electrode and chlorine gas to form at the other. The presence of chlorine is tested using blue litmus paper....

We separate the ions in copper dichromate gel using electrolysis. We see the positive blue copper ions move to the negative electrode and the negative yellow chromate ions move to the positive electrode. Chemistry - Reactions - Learning...

Explore the difficulties of extracting aluminium from its ore, and how the vast quantities of heat and electricity generated by electrolysis allow this to happen. Chemistry - ReactionsLearning Points. Aluminium is difficult to extract...

Discover how a process known as desalination is used to extract salt from seawater on a large scale.
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La electrólisis es el paso de corriente eléctrica a través de un líquido que provoca cambios químicos. El líquido, que contiene iones positivos (cationes) y negativos (aniones) libres, puede ser un compuesto iónico fundido o una...

Las reacciones exotérmicas liberan energía al entorno, generalmente en forma de calor, como en una hoguera. Ejemplos incluyen la combustión, la neutralización y la respiración, y se detectan si aumenta la temperatura. Las reacciones...