| A | B |
|---|
| Absolute location | Exact location of a place on the Earth described by global coordinates |
| Basin | Area of land drained by a given river and its branches; area of land surrounded by lands of higher elevations |
| Bay | part of a large body of water that extends into a shoreline, generally smaller than a gulf |
| Canyon | Deep and narrow valley with steep walls |
| Channel | Wide strait or waterway between two landmasses that lie close to each other; deep part of a river or other waterway |
| Cliff | steep, high wall of rock, Earth, or ice |
| Continent | One of the seven large landmasses on the Earth |
| Delta | Flat, low-lying land built up from soil carried downstream by a river and deposited at its mouth |
| Divide | Strech of high land that separates river systems |
| Downstream | Direction in which a river or stream flows from its source to its mouth |
| Elevation | Height of land above sea level |
| Equator | imaginary line that runs around the Earth halfway between the North and South Poles; used as the starting point of measure degrees of north and south latitude |
| Glacier | large, thich body of slowly moving ice |
| Gulf | Part of a large body of water that extends into a shoreline, generally larger and more deeply indented than a bay |
| Harbor | Asheltered place along a shoreline where ships can anchor safely |
| Island | Land area, smaller than a continent, completely surrounded by water |
| Isthmus | Narrow stretch of land connecting two larger land areas |
| Lake | A sizable inland body of water |
| Latitude | Distance north or south of the Equaitor, measured in degrees |
| Longitude | distance east or west of the Prime Meridian, measured in degrees |
| Highland | Elevated land area such as a hil, mountian or plateau |
