| A | B |
|---|
| triple beam balance | tool used to measure mass |
| Celsius | temperature scale, 0 is the freezing point of water |
| conclusion | position derived from the results of an experiment and supported by the data |
| constant | factor not changed in an experiment |
| control | standard for comparision |
| conversion | a change of metric units |
| data | recording observations and measuremnets |
| data table | organized way to show the results of an investigation |
| density | a measure of the amounf of matter in a substance compared to its volume |
| dependent variable | results from a change in the value of the independent variable |
| force | push or a pull on an object |
| frequency distribution | variation in qualitative data showing the nubmer of results for each category of a varialbe |
| graduated cylinder | tool used to measure volume |
| gram | SI unit for mass |
| hypothesis | testable prediction |
| independent variable | factor purposely changed in the experiment |
| liter | fliud measure of volume |
| mass | measure of the amount of matter in an object |
| meter | SI unit for length |
| newton | SI unit of force |
| observation | using your 5 senses to gather information |
| atom | basic building block of matter |
| chemical property | characteristic of a substance that indicates wheter if can undergo a chemical change (acidity, basicity, combustibility and reactivity) |
| compound | a substance made of two or more elements that are chemically combined |
| density | mass per unit of volume |
| element | substance in which all the atoms in a sample are alike |
| gas | subtance that fills space availalbe |
| heat | the movement of thermal energy from one substance to another |
| heat transfer | movement of hea from a warmer object to a colder one |
| Law of Conservation of Energy | energy can not be create dor dsd |
| liquid | substance with a definite volume and mass but no definite shape |
| mass | measure of how much matter is in an |
| mixture | two or more substances that can be separated by physical means and not chemcically |
| Particle Theory of Matter | particles in constant motion make up the most matter |
| physical change | a change in size, shape |
| reactivity | ability to combine with another substance |
| volume | amount of space occupied by an object |
| electron | subatomic particle with a negative charge |
| neutron | subatomic particle with a neutral charge |
| proton | subatomic particle with a positive charge |
