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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. |
dependent variable variable | something that can change a test. it is what is measured. this is your data. |
control group | a standard against which change is measured. |
procedures | step-by-step instructions for completing a task |
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 that is as close to the actual value as possible. |
models | objects or ideas that represent other things. |
survey | questions that are answered by people. great for opinion questions. |
inference | a conclusion based on observations. |
evidence | Observations that make you believe that something is true. |
sampling | examining random indivials from a population |
experimental group | the group that gets the special treatment |