Estimate in square CM the area of your foot print Record. Figure the area of your foot print. Latex Shot Put- 1. Place feet on starting line. Measure distance from starting line to the position of the balloon remains.
Place marbles on a balance scale.
Measure the mass of the marbles. Estimate the number of seconds you can swim underwater. Begin with both hands on the edge of the pool. When you are in need of a breath, surface. The stopwatch will stop.