Nouns denoting natural objects (not man-made)
- Earth's crust
- the outer layer of the Earth
- floater
- an object that floats or is capable of floating
- Aries
- a small zodiacal constellation in the northern hemisphere; between Pisces and Taurus
- section
- a very thin slice (of tissue or mineral or other substance) for examination under a microscope
- Quaoar
- a planetoid discovered in 2002
- floor
- the ground on which people and animals move about
- El Libertador
- a mountain in the Andes in Argentina (22,047 feet high)
- Ganymede
- the largest of Jupiter's satellites
- Victoria Falls
- a waterfall in the Zambezi River on the border between Zimbabwe and Zambia; diminishes seasonally
- flake
- a small fragment of something broken off from the whole
- IJssel river
- a river in the central Netherlands flowing north to the IJsselmeer
- Loch Ness
- a lake in the Scottish highlands; the largest body of fresh water in Great Britain
- mantle
- the layer of the earth between the crust and the core
- shell
- the exterior covering of a bird's egg
- Gasherbrum
- a mountain in northern Kashmir (26,470 feet high)
- stepping stone
- a stone in a marsh or shallow water that can be stepped on in crossing
- variable
- a star that varies noticeably in brightness
- precipice
- a very steep cliff
- Guantanamo Bay
- an inlet of the Caribbean Sea; a United States naval station was established on the bay in 1903
- Puget Sound
- an inlet of the North Pacific in northwestern Washington State
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