A control is a something that's controlling everything everything that's happening in the experiment
it's better to have a control but no you do not have to have a control in a science fair project
A control group is the unaffected group in a science experiment.
Pluto is not an example of "nature of science."
no the control does nothing
Control in a science experiment means it stays the same and you don't do anything to it.
A control in a science fair project would usually be a separate running of the experiment where you don't change anything. Example: If you are testing the effect that music has on plant growth, you would grow a plant with no music.
saying about science
Jane Goodall's study of wild chimpanzees is a example of discovery science
An example of Environmental Science would be where scientists study about acid rain or pollution.
"Starship Troopers" by Robert Heinlein is an example of a science fiction book .
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Control in science is something that can be used for comparison to determine the magnitude of an experimental effect. For example in a control group either nothing is done or a fake version of the experiment is performed to determine a "baseline". The results of the control experiment and the real experiment can be compared. This process helps eliminate the experimenter expectations effect, making the conclusions more objective. Note: controls are rarely needed outside the field of biology.