Question

a parent is looking at their kids backpacks and wants to compare their masses. what is the best tool to find the mass of each bag?
a beaker
b graduated cylinder
c ruler
d balance

Explanation:

A balance is a tool used to measure mass. A beaker is used to hold liquids. A graduated cylinder is used to measure the volume of liquids. A ruler is used to measure length. So the best tool to find the mass of each bag is a balance.

Answer:

D. balance