five bowls with water, one with no salt, one with 1 tsp salt,
next with 2 tsps salt, next with 3 tspns salt, and last with 4
teaspoons salt my items were a paper clip, a small plastic ball, a
pen, and rubber band. pen floated for a minute in every bowl, so
did the ball, rubber band didn't float in freshwater or salt w/1
teaspoon of salt, pen floated in every bowl. i waited a minute for
all