In this history of life worksheet, students will use diagrams of the Precambrian, Paleozoic, Mesozoic, and Cenozoic Era to complete 4 fill in the blank statements.

Students plot events that happened years ago beginning with volcano activity.  In this investigative lesson students are introduced to the different eras and plot them on a map. 

[Free Registration/Login may be required to access all resource tools.] Describes how events during the Paleozoic Era impacted evolution.

Describes plants and animals that lived during the Ordovician Period, where it falls in the geologic time scale, tectonic activity happening then, the climate and environment, and extinction events.