Marine and freshwater science Crossword

This printable crossword puzzle on the topic of Oceans & Water has 13 clues. Answers range from 4 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Crab, lobster, shrimp
Mussels, octopuses
Water plants
Another word for deep sea
No salt in this water
Opposite of freshwater
The process of adapting or being adapted
Made of protein chitin and calcium
a limbless cold-blooded vertebrate animal with gills and fins living wholly in water.
Type of adaptation, how they act
Type of adaptation, how they’re made
How salty it is
How hot or cold it is