Across
- 1. Ni on the periodic table
- 5. the thickest layer
- 7. a convener belt for tectonic plates
- 10. a dent
Down
- 2. the first layer
- 3. lava inside the earth
- 4. the force of pushing down
- 6. how dense some thing is
- 8. the densest layer
- 9. FE on the periodic table