The 15 representative specimens of intrusive and extrusive igneous rocks are each approximately 1-1/2” x 1-1/2” and are number coded. Grades 5-12. Geology is a required STEM subject.
The 15 representative specimens of intrusive and extrusive igneous rocks are each approximately 1-1/2” x 1-1/2” and are number coded. Grades 5-12. Geology is a required STEM subject.