Read the definitions and type the words that match well and hit the ‘Check Answers’ button to correct your answers in the end.
A group of islands or a cluster of islands found in the open sea (estuary/archipelago/gulf)
A ring or partial ring of coral that forms an island in an ocean or sea (archipelago/barrier/atoll)
An area of land surrounded by higher portions of land which drain into the center shallower part (basin/lake/river)
A body of water that is partially enclosed by land and usually smaller than a gulf (delta/lagoon/bay)
A flat-topped rock or hill formation with steep sides (butte/plateau/oasis)
A valley which is either narrow or deep with very steep sides (valley/canyon/butte)