A science that deals with the composition, structure, and properties of substances and with the transformations that they undergo. A science that deals with the interactions of airborne particles and climatatological change. The speed of sound. The size of a black hole. An object in motion will remain in motion unless acted upon by an outside force.
Every action has an equal and opposite reaction.
Water will drain counterclockwise in the Northern Hemisphere. The mass of the bob. The angle of release. The time of year. The length of the string.