Across
- 2. opposition
- 4. force where objects move away from one another
- 9. before written records
- 10. sudden, violent shaking of the ground
- 11. formal systematic research, inspection, or examination
- 14. the process where elements like water and wind breakdown rock and earth
Down
- 1. distinguishing features
- 3. heated to or past the boiling point
- 5. DNA strand coded with genes
- 6. liquefying or dissolving
- 7. the passing on of genetic traits
- 8. large thick ice masses that move slowly
- 10. physical or mental exertion
- 12. the physical appearance of features on the surface of the earth
- 13. remains of a prehistoric organism in rock