Place two coverslips on top of each other in each corner of one of the Lucite squares. Place one of the pieces of copper in the center of one plastic square. Do not use the small 2mm X 2mm squares. Pour 10 ml of the silver nitrate solution on and around the copper. Carefully place the second plastic square on top to avoid air bubbles.
Place clamps on the four corners.
Repeat procedure with all remaining shapes other than the small 2mm X 2mm squares. After making observations, place in a safe place until the following day. Variation in Concentration of Silver Nitrate 12. Repeat steps 3 - 11 using three 2mm X 2mm copper squares with the three concentrations of silver nitrate. Observations may be made using a hand lens, scanner, video cam hook-up, video microscope.