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In science what is a control or constant?

person 1:A control is the normal object in the experiment.
Ex) If you were testing different liquids on plants. The control would be the plant you water with water.

A constant is anything the stays the same during the experiment.
Ex) I'll use the same example, constants would be the amount of liquid, sunlight, soil, the type of container you use.
There are usually more than one constant.


person 2: well what i know a....

control: standard to which the outcome of a test is compared

constant: like person one said...
it is a variable that stays the same throughout the experiment.

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First answer by Indiangirl. Last edit by Iluvjb98. Contributor trust: 0 [recommend contributor]. Question popularity: 20 [recommend question].

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