Although stars are visible in space, pictures of celestial bodies taken from satellites by astronauts do not show any stars in the background. This is because the stars are very far away and, therefore, appear incredibly dim in contrast...

Raw meat from certain animals, such as fish, contain fewer pathogens – bacteria, viruses, and parasites – that can infect humans. Eating raw meat depends on several factors, including preparation, hygiene conditions, the source of the...

If we had twice the amount of oxygen, we have now, several significant changes would occur. Animals would grow larger as the increased oxygen supply would support their growth. Neutrophils, specialized white blood cells, would exhibit an...

Learn the art of artisan bread making with expert tips on managing long fermentation, handling high hydration dough, and achieving the perfect bake. A valuable resource for students in culinary courses.

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...

In general, to increase in size or amount.
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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...

The international standard unit of electric charge.
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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...

A measure of the amount of light emitted from or passing through a given area.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Elasticity is the property of a material that affects how easily it will return to its original shape after an external force is applied.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60...

A measure of how fast a reaction is taking place.
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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...

The rate of doing work, or of converting energy.
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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...

Plutonium is an element with so much energy it has powered space probes beyond our Solar System.



Chemistry - Periodic Table - Learni

ng Points.

Plutonium is

a radioactive metal.

Plutonium was...

Discover the forces at work underwater, which dictate why large boats float but small pebbles sink. Physics - Forces - Learning Points. The buoyant force is an upward-acting force determined by the weight of the displaced water. Ships...

How French Chemist Antoine Lavoisier revealed the true significance of oxygen and brought about the birth of modern chemistry. Chemistry - Periodic Table - Learning Points. Antoine Lavoisier experimented with weighing substances before...

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...

Learn how surface area can affect the amount of pressure exerted, and why this is useful in life? Physics - Forces - Learning Points. Pressure is the amount of force acting on a set area. Pressure is measured in pascals. Pressure can be...

Artificial trees: what are they? How do they work? And how could they help to prevent climate change in the future? Human Geography - A Changing World - Learning Points. The rate of climate change is increasing because of the increasing...

What is the expense, and environmental cost, of bottling water when tap water is freely available? Earth Science - Earth's Resources - Learning Points. Bottled water is up to 10,000 times more expensive than tap water. Bottled water has...

Alkalis and acids can be neutralised to great and varied effect. For example, it is neutralisation reactions that help us breathe underwater or cure indigestion. Chemistry - Reactions - Learning Points. A neutral solution is pH 7 Sodium...

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...

How energy is passed through living things can be described as a food chain. Journey through a food chain, from primary producers at the bottom to tertiary consumers at the top. Biology - Ecosystems - Learning Points. A 'food chain'...

Friction can be friend or foe. What is friction, how does it affect our lives and how can we alter it? Physics - Forces - Learning Points. Friction is a resistive force between surfaces moving at different velocities. Friction is...

Your teeth are exceptionally strong, but without the proper care they can be easily damaged. Learn how a few simple steps can help avoid tooth decay. Biology - Healthy Living - Learning Points. A build-up of plaque on your teeth can lead...

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...