| 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, more than an educated guess |
| theory | idea in science with at least some 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 proven correct repeatedly without exception |
| inference | a conclusion or explanation based on observations made about something |
| scienctific method | steps often used in solving problems in science (can be helpful in solving any problem) |
| experiment | used to test a hypothesis |
| procedure | something DONE in an experiment |
| science | search for the true nature of the world and how it works based on our observations of it |
| independent variable | factor tested; factor changed at the beginning |
| dependent variable | new result; what is measured; changed by the experiment |
| controlled variables or constants | all the factors that could change an experiment; must be kept the SAME |
| metric system | French system of measurement adopted by the world |
| International System of Measurement | metric system designed by the French; also known as "SI" |
