| A | B |
| scientific method | a way of solving a problem |
| define the problem | 1st step of the scientific method |
| hypothesis | an educate guess that answers the question |
| variable | the part that changes in an experiment |
| controlling variables | variables that you change on purpose |
| data | info collected from the experiment |
| conclusion | the answer obtained from the result of the experiment |
| law | explains what happens |
| theory | explains why something happens |
| standard units | units that everyone agrees to use |
| volume | how much space an object takes up |
| mass | the amount of matter in an object |
| accuracy | whether the actual value is the real value |
| precision | the exactness of a measurement |
| derived quantity | number must be calculated from two or more measurements |
| area | surface an object has, type of derived quantity |
| density | derived quantity, amount of matter in a given volume |
| mass / volume | formula for density |
| meter | SI unit for length |
| weight | gravity's force on an object |
| displacement | volume of water that a solid object moves |
| balance | device for measuring mass |