Which of these would be the best way to find
whether a softball will roll down a hill faster
than a basketball?

A Determining which of the balls has the
greater mass
B Observing the balls rolling down the same
section of a hill at the same time
C Throwing the balls into the air at the
same time to see which goes higher
D Dropping the balls from the same height
and observing which hits the ground first

On a warm day water was accidentally spilled
onto a metal tabletop. Later in the day, the
water was gone. The most likely explanation
is that someone wiped the water up or that —

F germs drank the water
G the table absorbed the water
H all the water spilled onto the floor
J the water evaporated into the air