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