Question

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 volume of the plastic and compare it to the density of water
c. find the density 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

Explanation:

The principle of floating and sinking depends on density. If an object's density is less than the density of the liquid it is placed in, it will float; if greater, it will sink. So, comparing the density of the plastic to the density of water can determine whether it will float or sink.

Answer:

C. find the density of the plastic and compare it to the density of water