Shaping the Earth by DH Patent and William Munoz
Geology by Barbara Murck
Vocabulary Added:
stratigraphy: studying rock layers
uncomformity: gap in rock strata
Discussion:
Sedimentary rock distribution and formation
Why strata reveal how the Earth moves and changes; relative dating of rock strata
Time gaps in stratigraphy
Activity:
Build layer upon layer of "rock" with quick-hardening materials or foods, like frosting or chocolate shell
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