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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 find out about objects |
experiment | is the use of scientific methods |
variable | is something that can change in a test |
independent variable | is one that you can control |
dependent variable | it changes when a independent variable changes. It is what gets measured. It gives data. |
control group | is a standard against which change is measured |
procedures | are step by step instructions |
data | is 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 answer |
inference | is a conclusion based on observations |
evidence | are observations that make you believe that something is true |
model | objects or ideas that represent other things |
surveys | Are question that are answered by people. And these are great for opinion questions. |
sampling | examining random individuals from a population |
experimental group | The group that gets the special treatment. |
control group | The group that doesn't get the special treatment. |