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chapter 1

hypothesis a statement of what you will happen during an investigation
observation something you find out about objects, events, or living things by using your senses
experiment is 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
control group the group that does NOT recive special treatment
procedures are 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 is 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
model object or ideas that represent other things
sampling Examining random individials from a population
experimental group the group that gets the special treatment
surveys questions answered by people. Great for opinion questions.
procedures step-by-step instructions for completing a task
Created by: mckenzie-howell



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