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Aquatic Ecosystems

7th Grade Science 
Crossword Puzzle
Horizontales
Organisms like algae and amoebas that float on ponds.
The land between high and low tides that includes beaches and rocky shores.
Is made up of river, lades, and wetlands.
Made up of the oceans.
A partially enclosed body of water formed where a river flows into an ocean and fresh water mixes with salt water.
Verticales
The ability of living things to change over time to survive in an ecosystem.
An area of land that is saturated, or soaked, with water for at least part of the year.
Includes any water environment and the community of organisms that live there.
The nonliving things in an environment.
The underwater zone from the shore to the edge of the continental shelf.