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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 |