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Chapter1
| Term | Definition |
|---|---|
| hypothesis | statement of what you think will happen during an investigation |
| observation | something you find out about objects, events, or living things using your senses |
| experiment | the use of scientific methods to test your hypothesis |
| variable | something that can change in a test |
| dependent variable | changes when an independent variable changes. It is what gets measured. It gives you data. |
| control group | the group that doesn't get the special treatment |
| procedures | 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 | the ability to make a measurement that is close to the actual value as possible |
| inference | a conclusion based on observations |
| evidence | observations that make you believe that something is true |
| independent variable | one that you can controll |
| model | 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 |
| experimental group | the group that gets the special treatment |