Mesozoic Era in Arkansas
Eighth graders study the geology of Arkansas from 225 million years ago to 65 million years ago. They discover they types of strata laid down by the Gulf of Mexico. They examine the economic importance to the community.
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A Quick Look at the History of Life on Earth Part 2 - The Phanerozoic Eon
Three eras of the current Phanerozoic geological eon are broken down for your pupils. Biological features of the Paleozoic, Mesozoic, and Cenozoic eras are listed, along with the possible causes of mass extinctions. Plenty of diagrams,...
6th - 12th Science