| A | B |
| Astronomer | Scientist who studies outer space and objects in it |
| Astronomy | Study of outer space and objects in it |
| Compass rose | Part of a map that shows the major compass directions |
| Contour interval | Vertical distance between contour lines on a topographic map |
| Contour line | Line on a map that connects points of equal elevation |
| Earth science | Study of the earth's land, water, air, and outer space |
| Geologist | Scientist who studies the solid parts of the earth and how they change |
| Geology | Study of the solid parts of the earth |
| Hachure | Short line that points toward the center of a depression on a topographic map |
| Legend | List of map symbols and their meanings |
| Map | Drawing that shows part of the earth's surface as seen from above |
| Meteorologist | Scientist who studies the air and weather |
| Meteorology | Study of the earth's air and weather |
| Metric system | System of measurment used by scientists |
| Oceanographer | Scientist who studies the oceans |
| Oceanography | Study of the earth's oceans |
| Scale | Part of a map that shows the relationship between map distance and actual distance |
| Submersible | Small underwater research vessel |
| Topographic map | Map that shows the shape and elevation of the land surface |
| Unit | Known amount used for measuring |