| A | B |
|---|
| pure science | search for better understanding of the physical and natural world for its own sake |
| applied science | appliction of scientific knowledge to improve the quality of life a.k.a. technology |
| chemistry | study of the structure, properties, and composition of matter as well as chamges in matter |
| alchemy | forerunner of chemistry, seach for ways to change base metals into gold |
| scientific method | process scientitsts use to solve problems |
| experriment | carefully devised plans and procedures used to gather information related to a problem or hypothesis |
| scientific law | statement describing relationships between observed facts that are always true |
| hypothesis | possible explanation of relationship between observed phemonema |
| theory | a general explanation for observations made by many different scientists repeatedly with the same results |
| controlled experiment | test situation in which only one variable is changed o see its affect on results |
| control | set up or procedure with no variables changed, used as a comparison |
| experimental | set up or procedure with one variable changed to see its affect on the observed results |
| Antoine Lavoisier | Frenc chemist who demonstrated that burning removes a substance from the air |
| phlogiston | substance at one time thought to be released into air by burning, when air "filled" burning would stop |
| bioluminescence | ability of some living organisms to emit light |
