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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 |