| 100% | TECTONIC | 8 | Relating to the structure of the earth's crust |
| 65% | HORST | 5 | Raised block of the earth's crust, to a geologist |
| 65% | TECTONIC | 8 | Related to the earth's crust |
| 58% | CRUSTAL | 7 | Relating to the outer layer of the Earth |
| 57% | PLATE | 5 | Part of the earth's crust |
| 57% | HORST | 5 | Ridge of the earth's crust |
| 57% | SIMA | 4 | Part of the earth's crust |
| 57% | PLATE | 5 | Division of the earth's crust |
| 56% | SIMA | 4 | Lower layer of the earth's crust |
| 56% | TECTONICPLATE | 13 | Shifting piece of the earth's crust |
| 56% | DIRTPORTION | 11 | Very, very top of the earth's crust? |
| 56% | TECTONICS | 9 | Science of the Earth’s crust |
| 55% | ETNA | 4 | Volcano in Verne's "Journey to the Center of the Earth" |
| 55% | SILICON | 7 | More than a quarter of the earth's crust |
| 55% | OTTO | 4 | Prof. Lidenbrock of Verne's "Journey to the Center of the Earth" |
| 54% | GEOLOGY | 7 | The scientific study of the Earth's structure |
| 54% | SILICON | 7 | More than a quarter of the earth's crust, by mass |
| 54% | VOLAR | 5 | Relating to the palm of the hand |
| 54% | PAPAL | 5 | Relating to the leader of the Vatican |
| 54% | CORONAL | 7 | Relating to the top of the head |
| 54% | AFAR | 4 | To the ends of the earth, say |
| 54% | RETINAL | 7 | Related to the back of the eye |
| 54% | TIDAL | 5 | Related to the motion of the ocean |
| 53% | PAPAL | 5 | Relating to the head of the Catholic Church |
| 53% | FELDSPAR | 8 | Rock-forming mineral that makes up over half of the earth's crust |
| 53% | AHMED | 5 | Man's name related to the name of Islam's founder |
| 52% | COSMOLOGY | 9 | The science related to the origin of the universe |
| 52% | AUTUMNAL | 8 | Relating to the period of the year before winter |
| 52% | POLAREXPEDITION | 15 | Travel to the end of the earth |
| 52% | HOLISTIC | 8 | Related to "the sum of the parts" |