Earths History

Calendar Lessons

1. Formation of Earth

2. Earth’s early atmosphere

3. Density

4. Origin of Life

5. Early life forms, black smokers

6. Chemosynthesis vs. photosynthesis

7. Fossil Record

8. Geologic time line

9. Mass extinctions

10. Human time clock

11. Relative vs. Absolute age

12. Rock layers, index fossils

13. Radioactive decay

Vocabulary    Practice Questions  Mr. Paris