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24 Cards in this Set
- Front
- Back
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Atom
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The smallest whole part of all matter.
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Element
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A type of matter made of one type of atom.
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Molecule
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A type of matter made of two or more atoms chemically bonded together.
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Mixture |
A material made of different elements and/or compounds where there is no fixed ratio. Can be separated using physical means.
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Chemical Symbol |
A short hand way to represent an element and molecule.
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Compound |
Made of two or more different types of atoms chemically bonded together.
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Physical Change |
A type of change in which the form matter changes its physical state as a result of energy changes.
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Chemical Change |
A type of change where one or more substances are chemically altered into one or more new and different substances.
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Chemical Reaction |
The process which brings about a chemical change.
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Acid |
A substance with particular chemical properties including turning litmus red, neutralising alkalis, often corrosive.
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Metal
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A type of matter which is typically solid, shiny, malleable and ductile, with good electrical and thermal conductivity.
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Alloy
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A type of metal made by combining two or more metallic elements to give different physical properties.
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Lustre |
The manner in which a newly exposed surface of metal reflects light.
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Malleable |
The ability of a metal to be beaten to form shapes without breaking.
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Ductile |
The ability of a metal to be drawn out to form a wire.
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Conductivity |
The ability of a substance to allow electricity or heat to travel through it.
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Extraction |
The process by which metals are removed from mineral ores.
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Electrolysis |
The process by which electric current is passed through a substance to effect a chemical change.
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Decomposition |
A type of chemical reaction where a substance is broken down into two or more simpler substances.
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Synthesis |
A type of chemical reaction where two or more substances chemically combine to form a new substance.
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Precipitation
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A type of chemical where 2 soluble salt solutions are combine to form a new insoluble solid. |
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Neutralisation |
A type of chemical reaction where an acid and a base interact to form a salt and water. |
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Biopolymer
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A very large molecule made by living organisms. |
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Petroleum
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Known as crude oil, an oily mixture of hydrocarbons that can be extracted from layers of rock and used to produce fuel and polymers. |
