Different materials react differently to variations in temperature and pressure.
This lesson is intended for 8th and 9th Grade Regents Earth Science students. Cut and assemble the gaskets and wooden spacers needed to form the 8 cube assembly used in the experiment. Explain the structural chages undergone by the carbon atoms as the sample changes from graphite to diamond. Test for the formation of diamond using a microscope and the silicon carbide scratch test. Pyrophyllite gasket material Duco cement Krazy glue Tweezers Coping saw Major Understandings Before doing this laboratory, students will have learned about the different types of bonding arrangements that carbon atoms are able to have.