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.
Grades: Grade 4, Grade 5, Grade 6, Grade 7, Grade 8
Difficulty: Intermediate, Middle School
Pages: 17 pages
Sample: View a Sample of this Lesson Plan