One page lab sheet for students to conduct experiments to determine "how many drops of water will fit on a penny before spilling over the side." I have them repeat the trials on both the heads and tails side of the penny. I also sometimes have them use pipettes vs. eyedroppers. This allows them to practice the scientific method, identify independent/dependent variables, and analyze the precision of their results. You can also take it another step farther by having students graph their results and/or graph their results vs. a partners and/or create a class average and graph (heads vs. tails in two colors), etc. * For collect information, I have them write the width of a penny and the width of the average size of a drop of water- I then explain that now they have information to help them make an educated guess (hypothesis).