Compounds and Mixtures

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A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.

Compounds and Mixtures
Element - A substance made up of only one type of atom.

Compound - A substance made up from two or more elements chemically bonded together. They can only be separated by a chemical reaction.

Mixture - A compound made up from different elements and/or compounds not chemically bonded together. Mixtures can be separated using techniques such as filtration, chromatography, evaporation and distillation.

Investigating Mixtures and compounds
Comparing physical properties of a mixture of iron and sulfur, and a compound of iron and sulfur.

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