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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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Electron shell
An orbit around the nucleus of an atom that can be occupied by one or more 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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Oxidation
The process of gaining oxygen in a chemical reaction, or more generally of losing electrons. 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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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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Ionisation
The process of stripping electrons from, or adding them to, atoms or molecules to produce charged ions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Positive charge
The charge that an object has due to a lack of electrons. 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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Negative charge
The charge that an object has as a result of an excess of electrons. 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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Electric Current
Electrical current is the flow of 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 reinforce abstract...
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Noble gases
Elements in group 8, also called group 0, 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 reinforce...
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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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Redox reaction
A reaction in which oxidation and reduction occur together. 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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Oxidiser
A chemical agent that readily releases oxygen atoms, or that readily gains electrons in a redox reaction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Metal
The elements in the middle and left side of the Periodic Table are all metals. 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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Beta particles
High-energy electrons emitted by nuclei during radioactive decay. 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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Cathode ray
Or electron beam, a stream of electrons emitted from the negative terminal of a vacuum tube. 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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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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Nuclear
Relating to the nucleus of an atom. The 'nuclear model' of the atom is one that describes a system of a nucleus surrounded by electrons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...
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Electrical charge
A fundamental property of matter that means all particles are either positive, negative, or neutral. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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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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Crystal
A solid consisting of atoms, molecules, or ions arranged in a highly ordered, repetitive, three-dimensional lattice. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Radioactivity
The emission of particles as a result of the spontaneous decay of atomic nuclei. 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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Displacement reaction
A reaction in which a more reactive element replaces a less reactive element in a compound. 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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Chemical bond
Bonds between atoms that allow the formation of chemical compounds. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...