• Elmer's Washable Glue (Blue Glue)
• Iodine
• Scotch Tape
• Two hot irons
• Scissors
• CD cases

Procedure

• Poured Elmer's Glue into small cd cases and allowed to dry overnight
• Took scissors and cut into rectangular peices
• Put dried glue between the two irons and stretched until a part of the rectangular glue became clear
• Took a little bit of iodine and evenly distributed it over the clear part of the dried glue
• Took small strip of Scotch Tape and taped it behind the opposite side of the iodine
• Polarizer was made

Observations

• Dried glue broke several times when strecthed between the two irons
• Polarizer was brown and when turned, become black
• When yellow iodine was painted onto the clear part of the glue, it turned brown