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Before conducting an experiment,we can minimize the chances that the control and experimental groups are different from each other in important ways by randomly assigning the population to each group.
Slightly Different Speed
A variation in velocity, indicating a small but noticeable change in the rate of motion compared to another object or compared to a previous state.
Neutrons
Subatomic particles found in the nucleus of an atom, having no electric charge and a mass about equal to that of protons.
Protons
Positively charged subatomic particles found within the nucleus of an atom, contributing to the atom's charge and atomic number.
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