| A | B |
|---|
| chemistry | study of matter |
| matter | has mass and takes up space |
| mass | quantity of matter |
| atom | smallest unit of matter |
| element | contains one type of atom |
| componund | contains more than 2 types of atoms |
| extensive property | dependent on amount of matter |
| intensive property | an example is density, boiling point |
| chemical change | another name for chemical reactionq |
| products | new "stuff" made in a chemical reaction |
| physical change | an example is melting |
| reactants | original "stuff" in a chemical reaction |
| property | characteristics describing matter |
| mixture | blend of matter |
| chemical | any form of matter |
| change of state | does not cause a change in identity |
| pure substance | has a fixed composition |
| periodic table | arrangement of elements by atomic number |
| group | column on the periodic table |
| period | row on the periodic table |
| metal | found on the left of the perodic table |
| nonmetal | found on the right of the periodic table |
| scientific method | organized investigation |
| hypothesis | a scientific guess |
| theory | explanation of a result |
| experiment | procedure carried out to test a hypothesis |
| quantitative | numeric |
| qualitative | non-numeric |
| weight | measure of gravity |
| mass | quantity of matter, not dependent on gravity |
| volume | 3-dimensional space occupied by matter |
| density | mass per volume |
