TY  - DATA
ED  - Discovery Channel School
ED  - Discovery Communications Inc.
TI  - Rocks and minerals
PY  - 2003///
CY  - [Bethesda, Md.]
PB  - Discovery Communications Inc.
KW  - Rocks
KW  - Juvenile literature
KW  - Minerals
N1  - Teacher's guide in PDF and Microsoft Word format
N2  - This cd-rom describes minerals, summarizes the rock cycle, describes the work of geologists, featured the geologic record of the Grand Canyon, traces the development of the Yosemite Valley and its granite walls, describes geologic forces that create jade and jadeite and painstaking process
ER  -