Aplastic material has a mass of 3.48 g and a volume of 10 ml.

will it float or sink? why?

It will float because it is less denser than water.

Explanation:

"Density" refers to the measure of an object's mass per unit volume. It follows the formula below:

Water has a constant density of 1 gram per cm-cubed or 1 gram per .

Now that we know about the formula, it would be best to compute for the plastic material's density.

Let's see the ρ = = 0.348 (density of the plastic material)

Since 0.348 is lesser than 1 , then this makes it less denser than water. Thus, it is going to float.