| Answer | Crossword Clue |
|---|---|
| CRUST | Earth's outer layer |
| PLATE | Part of the earth's outer layer |
| MARS | Earth's outer neighbor |
| FELDSPAR | 60% of the earth's outer crust |
| OZONE | Earth's ... layer |
| MANTLE | Earth's middle layer |
| SIMA | Earth's crust layer |
| SIMA | Layer of Earth's crust |
| SIAL | Layer of Earth's crust |
| MANTLE | Layer below the earth's crust |
| SIAL | Upper layer of Earth's crust |
| SIMA | Layer of the Earth's crust |
| SIAL | Upper layer of earth's crust |
| SIMA | Lower layer of the earth's crust |
