Materials Needed: Various Igneous Rock samples, Earth Science Reference Table (free link below)
Suggested Materials: magnifying glasses, rulers for measuring crystal size
Pre-Lab: Students read a passage then complete a Venn Diagram comparing and contrasting intrusive and extrusive igneous rocks.
During-Lab: Students follow a series of questions to make observations of various igneous rock samples. Then they must use the Earth Science Reference Table to identify the rock names.
This lab may reference the NYS Earth Science Reference Tables found free online here: http://www.p12.nysed.gov/assessment/reftable/earthscience-rt/esrt2011-engr.pdf