Across
- 4. sideways and downward movement of the edge of a plat of earth's crust into the mantle beneath another
- 8. dark basalt plains on earth's moon
- 9. field, a region around magnetic material or moving electric charge within which the force of magnetism
- 10. layer of consolidated rocky material covering bedrock
- 12. allen belt, two regions of intense radiation partially surrounding the earth
- 16. process of currents rise up to the surface and spread the tectonic plates apart
Down
- 1. ,heavily cratered regions of the moon a large bowl shaped cavity in the moon
- 2. rotation,the result of tidal forces that overtime slow the rotation of the smaller body until it is synchronised with the other
- 3. bulge, the result and deformation of earth and water due to gravitational effects from the moon and sun
- 5. bright streaks of material on the moon
- 6. tides, a period of moderate tides
- 7. break apart or become separated through faulting caused by a plate slipping
- 11. a sudden slip on a fault resulting in the ground shaking
- 13. rays,and highly energetic atomic nucleus or other particle in space at a speed approaching light
- 14. tides, the tides "springing forward"
- 15. narrow depressions on the surface of the moon