Which landform takes up three fourths of the Earth? Ocean What kind of landform has a vent at the top? Volcano What landform is completely surrounded by water? Island What kind of landform always runs downhill? River What kind of landform is surrounded by water on 3 of its sides? Peninsula What large body of water is surrounded by land? Lake Which landform is found at the bottom of mountains? Valley Which steep-sided landform is created by a river’s erosion? Canyon What landform is created by a sharp drop off in a river? Waterfall What is the tallest landform of all? Mountain What kind of landform appears as a hole in the ground or in the side of a mountain? Cave Which landform is a broad, flat space that is left behind after oceans run dry? Plains What kind of landform is triangle-shaped and lies close to the ocean? Delta What kind of landform do you get when a mountain gets worn down by wind and rain? Hill What kind of landform is big enough for an entire country to rest upon? Continent True/False Most landforms are shaped by water or geological activity? True True/False Mesa, harbor, gulf and plateau are types of landforms. True An Archipelago is a prehistoric bird. False