Oceanography Crossword

This printable crossword puzzle on the topic of Oceans & Water has 18 clues. Answers range from 4 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

originate by the cutting action of the surf against the base of the coastal land
remnant of a sea arch
left behind by receding wave-cut cliff
elongated ridge of sand; hooks landward
seals off bay from open ocean
ridge of sand that connects to an island to the mainland
flattest area on Earth
a composite science of biology, chemistry, physics, and geology
this ocean is getting wider due to sea-floor spreading
this ocean contains most of the water in the world
this chemical element is the most abundant in the ocean
also called the "Transition layer"
transmits sound waves to ocean floor
boundary between continent and ocean basin
isolated volcanic peak
found in all major oceans
most important ingredient for coral reefs
forms around a sinking volcanic island