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Chapter 1

TermDefinition
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 hypothisis
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 is measured. This is your data
control group The group that does not get the special treatment.
Procedures step-by-step instructions for completing a task
Data info 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 a conclusion based on observations.
Evidence observations that make you believe that something is true.
Models 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
Experimental group The group that gets the special treatment.
Created by: tyler-barnett1
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