| Term | Definition |
| mass | measure of the amount of matter |
| volume | amount of space in an object |
| matter | anything that has mass and takes up volume |
| constant | does not change f rom trial to trial in an experiment |
| metric | system of measurement |
| Newtons | spring scales measure weight in this |
| manipulated variable | one you change to test your hypothesis |
| gram | the standard UNIT used to show mass |
| weight | it is determined by the pull of gravity |
| hypothesis | educated or scientific guess |
| buoyancy | upward fluid force acting on objects |
| property | another name for characteristic of matter |
| formula for density | D=M/V |
| formula for volume | V=l.w.h |
| physical change | a change in physical property without changing substance |
| chemical property | the ability to change into another substance (flammability) |
| physical property | describe matter without changing it- (color, texture) |
| chemical change | change into another substance (wood burning) |