Debbie was doing a science lab, and she was instructed to decide whether a piece of plastic would float or sink without actually putting the plastic in the water. how could she do this? a. this is not possible. b. find the density of the plastic and compare it to the density of water c. find the volume of the plastic and compare it to the density of water d. find the mass of the plastic and compare it to the mass of a beaker of water