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Electron
The tiny particles within all atoms that carry a negative electric charge. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Baryons
A class of subatomic particles that includes neutrons and protons. 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...
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Ion
An atom or molecule that has gained or lost one or more electrons, and so has an electrical charge. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Isotope
Atoms of the same element with different numbers of neutrons. 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...
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Matter
Any substance that has mass and occupies a volume. 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 abstract...
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Proton
A positively charged particle found in the nucleus of all atoms. 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...
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Alpha particle
A type of particle produced in some types of radioactive decay, being one of the most widespread forms of ionising radiation. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Nucleus (chemistry)
In an atom, the small, dense, positively charged structure at its centre, containing the protons and neutrons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Element
An element is a pure substance that cannot be broken down any further by chemical means. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Nucleosynthesis
The formation of atomic nuclei from neutrons, protons and smaller nuclei. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Atom
The building blocks of all matter, being the smallest unit that retains the chemical properties of an element. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Cosmic rays
Highly charged particles, originating from outer space. 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 abstract...
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Subatomic particles
Particles that make up the structure of atoms, such as neutrons, protons and electrons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Isotopic mass
The mass of 1 atom of a specific isotope of an element. 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 abstract...
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Quark
A fundamental particle, and the components from which protons and neutrons in atomic nuclei are made. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Radioactive Substances
What is radioactivity? Explore the difference between alpha, beta and gamma radiation and how their different properties can make them useful. Physics - Energy And Radioactivity - Learning Points. Radioactivity is the nuclear decay of...
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What is Electricity? - Energy Movement
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...
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Large Hadron Collider
The Large Hadron Collider, the world's longest particle accelerator, is exciting scientists around the world who hope it can recreate the moments just after the Big Bang. Physics - Universe - Learning Points. The Large Hadron Collider is...
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Mars: The Search for Water
We know that Mars once had a landscape with oceans and rivers, but what happened to it? Physics - Universe - Learning Points. Although Mars is a freezing dry world today, it is thought the planet was once like Earth. If liquid water once...
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What is an Atom?
From our bodies to the oceans and stars, everything is made of millions upon millions of tiny atoms. But what are atoms made of? Chemistry - Atoms And Bonding - Learning Points. The building blocks of all elements are called atoms. Atoms...
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Forces of Nature
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....
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Atomic mass
The mass of a specific atom, given for the specific isotope of an element. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Neutron star
An extremely dense star formed when a giant star called a supernova explodes. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Strong nuclear force
The force that holds protons and neutrons together in the nucleus of an atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...