Lesson Plan
Curated OER

Dating Sedimentary Strata

For Teachers 8th - 12th
Learners investigate how the age of sedimentary strata is determined. In this sedimentary strata instructional activity, students work through problems that show that geological history covers millions of years. They distinguish between...
Lesson Plan
Curated OER

A Scale of the Earth

For Teachers 6th - 12th
Pupils create a scale model of the different eras, periods, and epochs of Earth's 4.6 billion year history. In addition to different time periods, other major events will also be added to the model from fabricated radioactive decay data....
Handout
Khan Academy

Khan Academy: The Atmosphere and Life

For Students 9th - 10th
This is an interview between two scientists discussing how shaping the biosphere is due to geologic events and changes in the atmosphere. Learn how there is a "complex balance between Earth's processes and its network of life".