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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 does not receive the special treatment |
procedures | step-by-step instructions for completing tasks |
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 as close to its actual value as possible |
inference | a conclusion based on observations |
evidence | observations that make you believe something is true |
independent variable | one you can control |
dependent variable | changes when an independent variable changes,it is what gets measured and gives you data |
hypothesis in a form of | if, then, because |
models | objects or ideas that represent other things |
survey | questions that are answered by people (great for opinions) |
sampling | examining random individuals from an population |
experimental group | the group that gets the special treatment |