This 3“ metal ball will float in cold water and sink in hot water. Use it to demonstrate the effects of temperature and mineral content on water’s density. Instructions included.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.