A mound or ridge of sand.
What is a dune?
A large body of salt water.
What is an ocean?
Underwater mountain ranges.
What are mid-ocean ridges?
What is the crust?
The height of land above sea level.
What is elevation?
A landform that rises high above the ground.
What is a mountain?
A natural body of moving water.
What is a river?
The ocean floor along the coast of a continent.
What is the continental shelf?
The air around you.
What is the atmosphere?
A person who takes measurements of land.
What is a surveyor?
A deep valley with high, steep sides.
What is a canyon?
The mass of land that forms at the mouth of a river.
What is a delta?
A wide, flat area of ocean floor.
What is the abyssal plain?
All of Earth's liquid and solid water, including oceans, lakes, rivers, glaciers, and ice caps.
What is the hydrosphere?
A map that uses shading to show elevations.
What is a relief map?
The land along the edge of a body of water.
What is a beach?
A small river or stream.
What is a tributary?
The deepest parts of the ocean floor.
What are trenches?
The layer of Earth's interior below the crust.
What is the mantle?
A map that uses lines to show elevation.
What is a topographic map?
Flat land that is higher than the land around it.
What is a plateau?
Where river water and ocean water meet.
What is an estuary?
A sharp slope where a continental shelf ends.
What is the continental slope?
The central part of the Earth, specifically the part made of solid metals.
What is the inner core?
A permanent reference point for an elevation.
What is a benchmark?