6. Fish ‘breathes’ oxygen from the water molecules: http://upload.wikimedia.org/wikipedia/commons/e/e6/Gills_(esox).jpg
7. Air bladder: sac inside the body that determines how deep it will go (or float)
8. Shape of the mouth lets you know how it eats. Top-feeder Bottom-feeder
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12. Fish Video Fish Video 1 Fish Video 2: transparent head Fish Video 3: hop along fish Fish Video 4: clownfish BIG fish WILD The Wild Classroom LINK & VIDEO