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chapter 1

TermDefinition
variable something that can change in a test
hypothesis statement of what you think will happen during an investigation
control group a standard against which change is measured
observation something you find out about objects, events, or living things using your senses
procedures step-by-step instructions for completing a task
experiment the use of scientific methods to test a hypothesis
inference a conclusion based on observation
data information from which a conclusion can be drawn or a prediction can be made
evidence observations that make you believe something is true
precision the ability to consistently repeat a measure
accuracy ability to make a measurement that is as close to the actual value as possible
model objects or ideas that represent other things
surveys questions answered by people ( great for opinion question)
sampling examining random individuals from a population
Created by: ava-helm
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