You could first soak the sponge in water, then use the standard method of measuring irregular objects: fill a graduated cylinder with 100 mL of water, then drop in the wet sponge and see how much the water level rises.
To measure the volume of a sponge, you can submerge it in a known quantity of water in a measuring cup. The increase in water level corresponds to the volume of the sponge. Alternatively, you can also multiply the length, width, and height of the sponge to calculate its volume.
This volume can be measured in millilitres.
Liter is a measure of volume. Volume = mass/density.
The volume of a liquid.
mL
liters
a large beaker and sponge
You can go by volume instead of weight.
mililiters
A sponge volume is mostly air.
Weight. (Since fluid is squeezed out, the compressed sponge weighs less). However, if the question refers to compressing a dry sponge, then the only quantity that would change would be volume.
My penis
you measure liquid or volume.
A sponge volume is mostly air.
You would determine the volume of water it displaces and measure it.
no; they have the same volume but their mass is quite different; density is mass/volume and the sponge has much lower density
You would use a tape measure.
I would use to measure a volume of a glass liters. Signed Luini, liters are bigger than milliliters and liters are about the volume of a glass.