| A | B |
|---|
| physical science | the study of matter, energy, and the changes that matter and energy undergo |
| science | a way of learning about the natural world through observations and logical reasoning |
| observations | involves using all 5 senses |
| inference | a logical interpretation based on observations or prior knowledge |
| hypothesis | an educated guess |
| variable | any factor that can be changed in an experiment |
| manipulated variable | one factor that a scientist changes during an experiment |
| responding variable | the factor that changes as a result of changes to the manipulated variable |
| controlled experiment | an investigation in which all variables remain the same except for one |
| scientific law | statement that scientist expect to happen every time under a certain set of conditions |
| matter | anything that has mass and takes up space |
| weight | measure of the force of gravity on you |
| mass | measure of how much matter an object contains |
| volume | measure of the amount of space an object takes up |
| density | measurement of how much mass is in a given volume |
| the unit of measurement for density | g/cm3 |
| unit of measurement used for length | meter |
| unit of measurement used for volume (solids) | cubic centimeters |
| unit of measurement used for volume (liquids,gases) | Liters |
| balance | instrument used in the lab to determine mass |
| formula for volume of regular shaped objects (cubes) | length x width x height |
