Jenny predicts that when water in a cup evaporates, the mass of the water and cup together will get smaller.

how can jenny test her prediction?
a.
use a scale to measure the mass of a cup of water. leave the cup out for one day and measure the mass again.

b.
let a cup of water evaporate for a few days and then measure the mass of the cup.

c.
mix water and sugar in a cup and measure how long it takes to evaporate.

d.
measure the volume of water in a cup. leave the cup out for one day and measure the volume again.