Scientists long ago believed atoms were like tiny, hard solid balls. By experimenting over many years, they have found atoms are NOT solid, and have CHANGED their “explanation” of atoms to include smaller particles INSIDE atoms. What do they call this explanation of how atoms work?
A. Theory
B. Fact
C. Opinion
D. None of these

Question

Scientists long ago believed atoms were like tiny, hard solid balls.  By experimenting over many years, they have found atoms are NOT solid, and have CHANGED their “explanation” of atoms to include smaller particles INSIDE atoms.    What do they call this explanation of how atoms work?
	A.	Theory
	B.	Fact
	C.	Opinion
	D.	None of these

abb0t · Answer

@Mimi_x3

anonymous · Answer

Based on the question is worded etc I think A would be your best bet