| A | B |
| experimental group | "guinea pigs" -- the real test group in an experiment |
| observation | something noted in an experiment or noticed about the world around you |
| control group | part of an experiment treated "normally" -- used to compare experimental results |
| hypothesis | untested idea, an educated guess |
| theory | idea in science with a wide body of evidence or observations supporting it; useful in making predictions |
| direct observation | an observation made on something you can see or measure "firsthand" |
| indirect observation | observation about something you can't see or measure "firsthand" -- you must observe HOW OTHER THINGS ARE AFFECTED |
| law | idea in science observed repeatedly without exception; frequently expressed mathematically |
| inference | a conclusion or explanation based on observations |
| scientific method | steps often used in solving problems in science (can be helpful in solving any problem) |
| experiment | designed and used to test a hypothesis |
| science | search for the true nature of the world and how it works based on our observations of it |
| research | pursuit of information to help develop a hypothesis |
| quantitative observation | attribute noted by senses that is expressed numerically |
| qualitative observation | attribute noted by senses that is not numerical |
| independent variable | purposely varied; believed to cause a change in another variable |
| dependent variable | variable that responds; can be considered the effect |
| controlled variable | variables that are identical for all groups in an experiment; used to isolate the effects of the independent variable |
| prediction | a statement of a future event based on inferences/logic |
| question | frequently based on an observation; the scientific method is frequently used to address it; extremely important action in science |