Earth’s Systems Study Guide
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4th grade PSI
-----------------------------------------------Earth’s Systems
1. What are Earth’s four systems?
2. What does each system include?
Mechanical Weathering
3. What is weathering?
4. What is mechanical weathering?
5. What are the tools of mechanical weathering?
Chemical Weathering
6. What is chemical weathering?
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4th Grade PSI
Earth Systems
7. How are mechanical and chemical weathering similar and
different?
8. How does weathering relate to Earth’s Systems?
Erosion
9. What is erosion?
10. How does erosion occur?
11. What is one example of weathering and erosion occurring by
the same force?
Biogeology
12. What is biogeology?
13. Give two examples of an organism affecting its environment.
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4th Grade PSI
Earth Systems
14. Give two examples of the environment affecting an organism
that lives within it.
15. When environment change, what must organisms do? What
will happen if they don’t?
16. Why is rainfall important to biogeology?
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4th Grade PSI
Earth Systems