This solid steel ball is great for physics collision experiments. Get couple of these and few of the larger or smaller ones and use them on a ruler with a 'groove' in the middle as a collision track. You can also use them with the 'loop-the-loop' or 'slide' apparatus for projectile experiments.
Features
WARNING: This product can expose you to chemicals including Lead, Chromium, which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
