Nouns denoting natural objects (not man-made)
- hydrosphere
- the watery layer of the earth's surface; includes water vapor
- seaside
- the shore of a sea or ocean regarded as a resort
- Laptev Sea
- part of the Arctic Ocean to the north of Siberia (between the Taimyr Peninsula and the New Siberian Islands) that is icebound most of the year
- Lascaux
- a cave in southwestern France that contains Paleolithic paintings
- Housatonic River
- a river that rises in western Massachusetts and flows south through Connecticut to empty into Long Island Sound
- honeycomb
- a structure of small hexagonal cells constructed from beeswax by bees and used to store honey and larvae
- jag
- a sharp projection on an edge or surface
- quicksand
- a pit filled with loose wet sand into which objects are sucked down
- plowland
- arable land that is worked by plowing and sowing and raising crops
- cape
- a strip of land projecting into a body of water
- trail
- a track or mark left by something that has passed
- straight chain
- an open chain of atoms with no side chains
- Yukon River
- a North American river that flows westward from the Yukon Territory through central Alaska to the Bering Sea
- land mass
- a large continuous extent of land
- Mackenzie River
- a Canadian river; flows into the Beaufort Sea
- Teton Range
- a mountain range in northwest Wyoming; contains the Grand Teton
- archipelago
- a group of many islands in a large body of water
- Pyxis
- a constellation in the southern hemisphere near Puppis and Antlia
- Dorado
- a constellation in the southern hemisphere near Reticulum and Pictor; contains most of the Large Magellanic Cloud
- beta particle
- a high-speed electron or positron emitted in the decay of a radioactive isotope