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Chapter 1
Science
Term | Definition |
---|---|
hypothesis | a statement of what you think will 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 you can change in a test |
control group | a standard against which change is measured |
procedures | step by step instructions for completing a task |
data | information from which a conclusion can be drwn or a prediction can be made |
precision | the ability to constantly repeat a measurement |
accuracy | the ability to make a measurement that is close to the actual value as possible |
inference | a conclusion based on a observations |
evidence | observations that make you believe something is true |
models | objects or ideas that represent other things |
surveys | questions that are answered by people. Great for opinion questions |
sampling | examining random individuals from a population |
independent variable | the variable that is changed by the scientist; the "I control variable" |
dependent variable | what is being measured; it changes when the independent variable changes |
experimental group | the test group that gets the special treatment |