Chemistry Terminology Year 7 Term 2

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Atom

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The smallest unit of an element that retains the properties of that element.

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Colloid

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A mixture where small particles are spread throughout a substance but do not settle over time.

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Compound

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A substance formed when two or more different elements chemically bond together.

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Decantation

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A process of separating a liquid from a solid by carefully pouring out the liquid.

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Distillation

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A separation technique that uses evaporation and condensation to separate substances based on boiling points.

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Element

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A pure substance made of only one type of atom.

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Evaporation

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A process where a liquid turns into a gas, leaving behind dissolved substances.

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Filtration

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A method used to separate an insoluble solid from a liquid using filter paper.

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Flocculation

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A process where fine particles clump together and settle out of a solution.

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Hazard

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Something that has the potential to cause harm.