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chapter 1
| Term | Definition |
|---|---|
| hypothesis | 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 | is the use of scienctific methods to test your hypothesis |
| variable | is something that can change in a test |
| control group | the group that doesent get the special tretmentstander |
| procedures | are step-by-step instuctions for completing a task |
| modles | objects or ideas thet represent other things |
| surveys | questions that are answered by people.great for appenon questions |
| sampling | exsamon ramdon idividuals from a population |
| independent varible | a varible that you can change |
| dependent varible | it is what is measured.it changes when the independent varible changes |
| experimental group | the group that does gets the special treatment |
| data | are informatoin from witch a conclusion can be drawen orma prediction can be made |
| precision | is the ablity to consistently repeat a measurment |
| accuracy | is the ablity to make a measurement that is as close to the actual value as possible |
| inferance | is a conclusion based on observation |
| evidence | are observations that make you believe that is something is true |