I think the word you're looking for is "hypothesis".
For example, a hypothesis could be "dogs drink more often when owners are present".
And then this can be proven (or dis-proven) by an observation (or in this case rather: measurement).
Answer:
I do it doesn't show anythibg??,.....
<span>In America’s version of federalism, power is shared b</span>etween the state and federal governments.
As it was faster for going places and transporting goods
Sorry no the best