A | B |
basic science/research | search for better understanding of the physical and natural world for its own sake |
applied science/research | 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, search for ways to change base metals into gold |
scientific method | process scientitsts use to solve problems |
experiment | carefully devised plans and procedures used to gather information related to a problem or hypothesis |
scientific/natural 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 to 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 |
physics | study of matter, energy, forces, and motion |
geology | study of origin, history, structure of earth |
astronomy | study of origin, history, structure of universe |
biology | study of origin, history behavior of living things |
alchemy | ancient search for elixir of life, philosopher stone |
biochemistry | study of biologically active matter |
inorganic chemistry | study of carbonless substances |
organic chemistry | study of natural and synthetic carbon substances |
physical chemistry | study of properties in relation to energy/matter |
analytical chemistry | develops procedures used to study matter |
scientific model | representation of object/event that cannot be seen |
manipulated variable | factor changed in to see result/effect |
responding variable | factor that changed due to manipulation |
scientific notation | large/small numbers written product of coefficient and 10 raised to a power |
meter | metric/SI unit of length |
gram | metric/SI unit of mass |
kelvin | metric/SI unit of temperature |
second | metric/SI unit of time |
mole | metric/SI unit of amount of substance |
mega- | 1,000,000 times |
kilo- | 1,000 times |
deci- | 1/10 times |
centi- | 1/100 times |
milli- | 1/1,000 times |
micro- | 1/1,000,000 times |
nano- | 1/1,000,000,000 times |
pico- | 1/1,000,000,000,000 times |
accuracy | how close a measurement is to actual value |
precision | how close a series of measurements are to one another |
Fahrenheit scale | water freezes (32 degrees) boils (212 degrees) |
Celsius scale | water freezes (0 degrees) boils (100 degrees) |
Kelvin scale | water freezes (273 degrees) boils (373 degrees) |
Bar Graph | visual representation that compares measurements |
Circle Graph | visual representations that compares parts of a whole |
Line Graph | show changes in related variables |