Across
- 2. Hot molten liquid that is below the surface.
- 3. A molten rock enriched in iron and magnesium and has a low silica content.
- 10. Includes the very top of the mantle and the crust
- 11. The circulation of thermal energy moving to heat all parts of a particular area.
- 12. When two plates move apart form each-other.
- 13. A crack in the Earths crust.
Down
- 1. When all the continents were connected and formed one big one.
- 4. The top part of the earth's mantle. The plates move on this layer.
- 5. The inner most part of the earth.
- 6. The thick part of the outermost layer of the earth. Forms large, land masses.
- 7. Hot and flows like a thick liquid. Made of a semi molten rock.
- 8. Large slabs of solid rock that hold the continents and oceans.
- 9. The constant movement of continents.