| A | B |
| extraterrestrial | above and beyond what is found on planet Earth |
| geode | a hollow stone found on the earth that is lined on the inside with crystals |
| geographer | a person who studies the regions of the earth |
| geography | science of the earth that deals with the regions or places on the planet’s surface |
| geology | the study of the earth, specifically rocks and the planet’s crust |
| mediterranean | almost or completely surrounded by land |
| subterranean | under the surface of the earth |
| terra cotta | hard, brownish-red pottery |
| terrace | a raised, flat mound of earth (dirt) that looks like a platform with sloping sides |
| territory | an area, region, or piece of land |