Weigh the material thought to be Lucite using a pound or gram scale, depending on the size and weight of the sample. Record this number on the paper.
Measure the width, length, and height of the material thought to be Lucite or drop the Lucite into a liter graduated cylinder filled with 500 milliliters of water and record the milliliter increase. Multiply the width by length and height to obtain the volume in centimeters cubed.
Determine the density of the material using the equation density equals mass divided by volume. The density of Lucite is 1.17 to 1.20 grams divided by centimeters cubed.
Attempt to scratch the material thought to be Lucite using a nail. Lucite scratches extremely easily.
Light the material on fire or attempt to melt using a candle or lighter. Lucite melts with ease, as it is a plastic.