Argue and give support that gravitational force is directed downward Practice Test

Growing two plants with different amounts of sunlight and water to see which one grows taller.

Soaking two pennies, one in soda and one in water, to see what effect the soda has on the metal.

Carving a piece of wood like a boat to see if it floats in your bathtub.

Dropping a rock and a feather off of the top of a staircase to see how fast each one falls.