Investigating Forces and Motion: Physical Science (Science Readers)
By Jane Weir.
Description
Forces can't be seen, but without them, nothing around us would happen! A force is a push or pull that usually causes movement. Friction is a force that opposes motion and slows things down or stops them. Famous scientist and mathematician Sir Isaac Newton wrote the rules about forces and motion. - from Amzon
ISBN(s)
0743905733, 9780743905732
