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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 |
independent variable | one that you can control |
dependent variable | changes when an independent variable changes. it is what gets measured. it gives you data. |
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 from |
precision | the ability to consistently repeat a measurement |
accuracy | the ability to make a measurement that is close to the actual value as possible |
inference | a conclusion based on observations |
evidence | observations that make you think that something is true |
model | models represent things |
surveys | questions that are answered by people |
sampling | examining random individuals from a population |
experimental group | the group that gets the special treatment |