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chapter 1
Term | Definition |
---|---|
hypothesis | is a statement of what you think will happen during an investigation |
observation | is something you can find out about objects, events, or living things by using your senses |
experiment | is the use of scientific methods to test your hypothesis |
variable | is something that can change in a test |
control group | the group that doesn't get the special treatment |
procedures | are step by step instructions for completing a task |
data | are information from which a conclusion can be drawn or a prediction can be made |
precision | is the ability to consistently repeat a measurement |
accuracy | is the ability to make a measurement that is as close to the actual value as possible |
inference | is a conclusion based on observations |
evidence | are observations that make you believe that something is true |
independent variable | is one that you can control |
dependent variable | changes when an independent variable changes, it is what gets measured, gives you data |
models | objects or ideas that represent other things |
survey | questions that are answered by people |
sampling | examine random individuals from a population |
experimental group | the group that gets the special treatment |