of the game board, and place a book at the bottom of the ramp. then, start rolling items down the ramp to measure them. you can use items as different as a car and a penny, measuring where they both land. changing the angle of the ramp will also demonstrate an effect on force and motion.
you can continue to experiment with newton’s laws of force and motion by setting up a new ramp using a ruler and a book. take one of the cups, cut an opening on one side, and place it at the bottom of the ramp. roll marbles of different sizes and measure how far each marble 