How do you find the volume of a rock? ?

Question

a graduated cylinder contains 31.5 mL of water. a rock is dropped into this graduated cylinder and the water level in the graduated cylinder rises to 43.0 mL what is the volume of the rock?

Answer 1

An object that doesn't float displaces its own volume of water.

The volume of the rock is therefore just 43.0 - 31.5 = 11.5mL

[11.5 cc]

Answer 2

43 minus 31.5: 11.5 is your answer

Answer 3

who cares!

Answer 4

New level, 43mL: Original level: 31.5mL.

Difference = 11.5mL.

As the rock is a solid and didn't mix with the water, it's displacement of 11.5 mL (which is the same as 11.5 cc) makes its Volume 11.5cc which are the units used for solids.

You can't pour out mL or litres of rock.