Identify a significant idea from the Scientific Revolution.

A. geocentric model: Earth stays still as celestial objects orbit around it.

B. Newton’s laws of motion: The forces acting on an object change how it moves, or doesn’t move.

C. circle orbit theory: All the planets in the solar system have a perfectly round orbit around the sun.

D. round Earth theory: Earth is not flat.

The correct answer is D. round Earth theory: Earth is not flat.