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Chapter 1
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 doesn't get the special treatment |
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 is as close to the actual value as possible |
inference | draw conclusion based on observations |
evidence | observations that make you believe that something is true |
model | objects or ideas that represent other things |
survey | questions that are answered by people. great for opinion questions |
sampling | examining random individuals from a population. |
dependent variable | changes when an independent variable changes. it is what is measured. this is your data |
experimental group | the group that gets the special treatment |
independent variable | one that you can control |