Relating to heat or temperature.
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The study of chemical reactions in living organisms, the chemistry of life.
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Material that has a definite chemical composition and distinct properties.
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A substance that is not readily ignited or rapidly burned is said to be non-flammable.
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An orbit around the nucleus of an atom that can be occupied by one or more electrons.
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While most elements can easily be categorised as either metals or non-metals, a few have physical and chemical properties that are in between, which makes them harder to classify.
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Different forms of the same element, composed of exactly the same atoms, in the same physical state, but in different arrangements.
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A homogeneous mixture of more than one substance, with the different particles evenly distributed throughout.
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A substance with properties that arise from extremely small structures, of the order of 1 to 100 nanometres.
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Chains of carbon atoms, especially in fats and oils, that contain two or more double bonds between carbon atoms.
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Molecules with identical molecular formulas but in which the atoms are arranged differently.
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An atom or group of atoms within a compound that reacts in a characteristic way, giving molecules particular chemical properties.
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A substance composed of more than one chemical element, whose atoms are held together by strong chemical bonds and are combined in a fixed ratio.
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A systematic arrangement of the chemical elements.
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Carbon occurs naturally in four different forms. Discover how they differ and why? Chemistry - Atoms And Bonding - Learning Points. Carbon is present in all living organisms. Carbon in its elemental form appears as four distinct...

In 1869, Russian scientist Dmitri Mendeleev created the Periodic Table, ordering the naturally occurring elements by their structure and properties. His Periodic Table changed the course of Chemistry forever, and even predicted the...

The properties of water and its uses, depend on its mineral content. What minerals are found in water and how do they affect it? Chemistry - Periodic Table - Learning Points. Water contains dissolved mineral ions, such as sodium, calcium...

The world appears to be a colourful place, but what are colours? What properties of light determine what colour we see? Physics - Waves - Learning Points. Colour is how our brains perceive different wavelengths of light. Newton...

Watch one champion try to recite Pi to as many digits as he can; and discover what Pi is and why it is useful. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show...

Metals can be strong and hard, or they can be flexible. It's the special behaviour of ions that give metals their different properties. Chemistry - Atoms And Bonding - Learning Points. Metal atoms bond together and create giant lattice...

When Mendeleev created the Periodic Table in 1869, he also predicted the existence of elements yet to be discovered, including gallium. What are the properties of this rare metal and why was its discovery so important? Chemistry -...

The story of chemist John Newlands and his theory of the "Law of Octaves" that related chemical elements to notes in the musical scale. Did the scientific community accept his unusual theory and does it hold up to the laws of modern...

Still in its early stages, nanotechnology has the potential to change our world. What is it and how could it be used in the future? Chemistry - Atoms And Bonding - Learning Points. Nanotechnology is engineering on the smallest scale....

The differences between thermosetting, thermosoftening and partially biodegradable plastics, and how they can be recycled. Chemistry - Chemical Industries - Learning Points. We throw away a lot of plastic and most is non-biodegradable....