How to find the mass and the volumn of a plastic foam ball? state out the apparatus / materials and procedure of finding the volumn and mass of a plastic foam ball plz~❤❤

For the mass of the ball, you can use any weighing balance. In the laboratory, there could be many kinds like platform balance, analytical balance or the scale balance. They only differ in the accuracy. For the volume, you may use a tape measure to measure the radius of the ball. Once you get the radius, you use the formula for the volume of a sphere: V = 4/3*πr³.

It is going to be the third choice