| A | B |
|---|
| milli- | x .001 |
| centi- | x .01 |
| deci- | x .1 |
| gram | base unit to measure mass |
| meter | base unit to measure distance |
| liter | base unit to measure volume |
| deka- | x 10 |
| hecto- | x 100 |
| kilo- | x 1000 |
| matter | anything with both mass & volume |
| mass | the amount of matter in an object |
| volume | the amount of space an object takes up |
| weight | gravity pulling on an object |
| solid | definite shape & definate volume |
| liquid | not a definate shape but a definate volume |
| gas | not a definate shape & not a definate volume |
| melting | solid changes to a liquid |
| evaporation | liquid changing to gas |
| boiling | liquid changing to a gas within the liquid |
| condensation | gas changing to liquid |
| freezing | liquid changing to solid |
| physical change | change that does NOT change characteristics |
| chemical change | causes characteristics to change |
| problem | the question to be investigated |
| hypothesis | the educated guess to try to answer the question |
| materials | list of supplies needed for investigation |
| procedure | list of steps to follow in investigation |
| observations | data collected, measurements, descriptions |
| conclusions | answer to question using observations |
| control | experiment where no variables are charged |
| independent variable | variable or characteristic you choose to change |
| dependent variable | variable or characteristic that changes as a result of the independent variable |
| multiple trials | perform steps many times to help correct for errors and increase accuracy |
| repeat | a well-designed investigation must be performed by lots of people |
| triple beam balance | used to measure mass |
| graduated cylinder | used to measure volume |
| meter stick | used to measure distance |
