Question

Why do some things float but others sink if they have the same mass?

Answer 1

It's called buoyancy. It is the tendency of an object to float

Answer 2

Answer:

With science, even if they have the same mass doesn't mean it will have the same weight.

Explanation:

Sometimes gravity does different things like sinks objects that are the same mass as others. I took Bio last year and learned that not everything with the same mass has the same balance.