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chapter 1
Term | Definition |
---|---|
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 |