| A | B |
|---|
| experimental group | the group that contains the variable; the "guinea pig" group |
| 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, a possible solution |
| theory | a hypothesis that has been proven true many times |
| 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 |
| science | search for the true nature of the world and how it works based on our observations of it |
| controlled experiment | an experiment made "uniform" by allowing only one variable |
| spontaneous generation | the idea that life could come from nonliving things |
| Redi's experiment | showed that life could only come from other living things |
| One reason that Redi's experiment is considered "classic" | It was repeated many other times by other scientists |
| variable | the one difference between the set-ups in a controlled experiment |
