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What is an atom?
The smallest particle which makes up everything
What is an element?
Made from only 1 type of atom
What is a compound?
two or more elements chemically combined
What is a mixture?
two or more elements or compounds NOT chemically combined
What are the 4 methods of separation?
filtration, evaporation/crystallisation, distillation, chromatography
What does filtration separate?
Insoluble solid from a solvent
What does evaporation/crystallisation separate?
Soluble solid from a solution
What does distillation separate?
Liquids with different boiling points
What does chromatography separate?
Soluble solids dissolved in the same solvent
What method separates an insoluble solid from a solvent?
Filtration
What method separates a soluble solid from a solution?
Evaporation/crystallisation
What method separates liquids with different boiling points?
Distillation
What method separates soluble solids dissolved in the same solvent?
Chromatography
Which 2 processes are involved in distillation?
Evaporation and Condensation
Who said the atom was a tiny indivisible sphere?
Dalton
Who created the plum pudding model?
JJ Thomson
