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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 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
Created by: annabelle-farrow
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