Vocabulary
a number that summarizes a set of data and that can be computed by adding all the numbers in a list and then dividing by the number of numbers in the list
average
a balanced state in which a system is stable, such as when two or more samples are at the same temperature
equilibrium
tiny organisms that are made of a single-cell
bacteria
water that is underground
groundwater
when something becomes different over time
change
to reach a conclusion using evidence and reasoning
infer
the moment when two objects hit each other
collision
the ability to make things move or change
energy