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Chapter 1

The Nature of Science

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 does not get special treatment
procedures step-by-step instructions for completing a task
models objects or ideas that represent other things
survey questionnaires or interviews
sampling examining random individuals from a population
independent variable the variable you can control
dependent variable It is what is measured. It changes when the independent variable changes.
experimental group the group that does get special treatment
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 a conclusion based on observations
evidence observations that make you believe that something is true
Created by: mary-griffith