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Denature
To change the shape of a protein or amino acid molecule, disrupting its normal biological activity, but without changing it chemically. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...
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Non-flammable
A substance that is not readily ignited or rapidly burned is said to be non-flammable. 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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Metamorphic rock
Naturally occurring rock that has been transformed by heat and pressure in the Earth's crust. 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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Metamorphism
The transformation of rocks beneath the Earth's surface through heat and pressure, and the presence of dissolved minerals in hot groundwater. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
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Kinetic energy
The energy of movement. It is equal to half the moving object's mass, multiplied by its velocity. 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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Greenhouse effect
The effect caused by some atmospheric gases trapping heat close to a planet's surface. 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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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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Endothermic
A chemical reaction or process that absorbs heat from the surrroundings. 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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Homeostasis
The maintenance of a stable internal environment. 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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Conduction
The transfer of heat energy due to a difference in temperature, always from a hotter to cooler area. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Cracking
Reactions used in the oil industry to break down large hydrocarbon molecules. 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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Chemical reaction
Any process in which one or more chemicals are changed into different products, by the breaking and formation of chemical bonds. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Factpack: Extreme Temperatures
What are the most extreme temperatures ever recorded? Where and how have they been achieved? Physics - Energy And Radioactivity - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use...
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Enthalpy change
The amount of heat energy gained or lost by a chemical system when a process or reaction takes place at constant pressure. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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The Elements: Copper
Copper has been used by man for thousands of years. Chemistry - Periodic Table - Learning Points. Copper is a malleable metal. Copper is extracted from ore. Copper is a good conductor of electricity and heat. Copper helps to keep the...
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Spontaneous
Occurring without any external influence or trigger, entirely by its own means. 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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Infrared light
Electromagnetic radiation with a slightly longer wavelength than visible light, between about 700 and 1050 nanometres. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Perpetual Motion
A machine that can work under its own power forever would revolutionise our world. Could this ever be possible? Physics - Energy And Radioactivity - Learning Points. A perpetual motion machine is a theoretical machine that can run...
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Efficiency
The proportion of energy supplied to a device or process that is converted into a useful form. 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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Non-metals
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...
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Crude oil
A naturally occurring thick brown liquid, composed of a mix of hydrocarbons, and usually found deep underground. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Solar flare
A violent explosion on the surface of the Sun which affects all the layers of its atmosphere, heating plasma to tens of millions of degrees and releasing huge amounts of energy. A Twig Science Glossary Film. Key scientific terms defined...
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Heat
The transfer of thermal energy. 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 concepts and key...
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Exothermic
A chemical reaction or process that releases heat. 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...