| A | B |
|---|
| observations | something you notice using your 5 senses |
| inference | a guess based on your observation |
| control group | never gets the variable |
| experimental group | gets the variable |
| constant | always stays the same |
| hypothesis | an educated guess using IF, THEN, BECAUSE format |
| length | distance between 2 points |
| metric ruler | tool used to measure length |
| mm, cm, m, km | unit used to measure length |
| mass | amount of matter in an object |
| triple beam balance | tool used to measure mass |
| mg,cg,g, kg | units used to measure mass |
| volume | amount of space an object occupies |
| graduated cylinder (& sometimes Metric ruler) | tool used to measure volume |
| ml, l, cm3 | units used to measure volume |
| V2 - V1 = V | formula used to measure an irregular solid |
| LxWxH = V | formula used to measure a regular solid |
| density | a measure of how tightly packed the molecules of an object are. |
| less dense objects | float |
| more dense objects | sink |
