# data[].attributes.body
The amount of space in a substance or object

# data[].attributes.body
To find the volume of 3 marbles in mL

# data[].attributes.body
So we grab a 100ml graduated cylinder and add 20 ml to it. Record the amount of water before. Put the 3 marbles in the cylinder and record the amount after. Minus the volume of water before and after and get you diffrence.