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Science Review 2011
Science Review
elements | pure substance, made up of only one type of atom: oxyegn |
compound | made of two or more types of atoms chemically combined. |
mixture | two or more substances in the same space. homogeneus-same throughout heterogenous- diffrent throughout |
filteration | seperate mixtures based upon the size of the particle: strainer |
evaporation | seperates solute from the solvent in a solution |
mangetism | magnets can remove magetic materials (iron) from mitures |
settling | dense materials that sink to the bottom of a mixtre |
stirring | increase rate of solubilty |
heating | hotter molecules move faster |
decreasing solute | less solute will dissolve more quickly |
crushing | crushing creates more surface area |
unsaturated | below the line |
saturated | on the line |
supersaturated | above the line |
independent | change on purpose |
dependent | data you collect |
controlled variable | kept th same |