Across
- 3. alfred wegeners name for his discovery
- 4. discovered continental drift
- 8. made up of iron and nickel
- 9. created to find possibility of offspring
- 10. another word for tectonic plates
- 12. when two plates slide past each other and stay there,it creates this rumble
- 14. two of the same alleles
- 15. when all continents were together,this was its name
Down
- 1. two different alleles
- 2. discovered seafloor spreading
- 3. alfred wegener found that the continents fit together like a puzzle piece
- 5. scientist found fossils of the same animal all over the world,this was one of the four evidences used for continental drift
- 6. harry hess discovered the reasoning for continental drift,he named it...
- 7. thickest layer of the earth
- 11. uppermost part of the earth
- 13. the device harry hess used to find seafloor spreading