| A | B |
| data | information gathered by scientists |
| meter | basic metric unit for length |
| microscope | an instrument that makes small objects appear larger |
| controlled experiment | an experiment with two test groups |
| volume | the amount of space in something |
| kilogram | the metric unit for measuring mass |
| lens | a piece of glass for bending light |
| constant | the factor kept the same in an experiment |
| cubic meter | a metric unit for volume based on the meter |
| density | the amount of mass in a given volume |
| variable | the factor that changes in an experiment |
| liter | the metric unit for volume |
| mass | the amount of matter something contains |
| observe | use senses to get information |
| infer | explaination for an observation |
| estimate | guess the number of |
| measure | the amount of an observation (# & unit) |
| predict | say what might happen in the future |
| classify | sort or group things |
| hypothesize | suggest an answer to a problem |
| analyze | looking for patterns or trends in data |
| circle graph | a graph showing percentages |
| bar graph | a graph for comparing |
| line graph | a graph to show change over time |