Question

How can two items have the same mass and different volume?

These items can differ on how much space is taken up by their matter.
The gravitational pull of the two items can be different.
These items can have the same density.

Answer 1

Answer: These items can differ on how much space is taken up by their matter.

Explanation: Size = volume mass = how strong a gravitational pull is. So the items could have different size but same mass like a 500 pound cow compared to a 500 pound weight the cow is bigger so it has more volume.

Answer 2

The gravitational pull of the two items can be different

I think that's right I'm not fully sure..