Chapter 15. Lab III-1 Determine Densities of Glass and Plastic Specimens

Equipment and Materials

You’ll need the following items to complete this lab session. (The standard kit for this book, available from, includes the items listed in the first group.)

Materials from Kit

  • Goggles

  • Graduated cylinder, 10 mL

  • Forceps

  • Pipettes

  • Test tube(s)

  • Test tube rack

Materials you Provide

  • Gloves

  • Balance

  • Isopropanol, 99% or acetone

  • Specimens: glass and plastic (see text)


Glass and plastic fragments have sharp edges and may cut you. Handle them with forceps. Isopropanol is flammable. As a matter of good practice, you should always wear splash goggles, gloves, and protective clothing when working in the lab.


The density of a material ...

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