Deep Sea & Ocean Zones
| S | I | G | H | A | H | S | I | F | R | E | P | I | V | I |
| H | S | I | F | R | E | L | G | N | A | M | F | D | E | N |
| O | A | E | B | Q | N | T | I | L | I | R | N | T | C | T |
| Z | O | T | S | K | W | X | W | D | E | O | W | I | G | C |
| A | T | Y | I | E | E | S | N | I | T | N | T | E | V | I |
| B | D | N | T | E | A | I | U | K | L | O | X | C | H | H |
| Y | A | C | H | N | G | F | N | N | H | I | G | K | S | T |
| S | R | I | H | H | E | A | L | P | L | U | G | O | Y | N |
| S | K | G | T | C | L | R | A | O | L | I | U | H | M | E |
| C | N | A | F | P | N | A | R | P | O | T | G | Q | T | B |
| R | E | L | S | O | U | E | E | U | N | R | P | H | R | O |
| T | S | E | R | A | P | R | R | Z | C | H | I | H | T | A |
| J | S | P | N | H | V | J | B | T | O | H | A | D | A | L |
| B | I | O | L | U | M | I | N | E | S | C | E | N | C | E |
| D | M | L | I | E | R | U | S | S | E | R | P | S | A | S |
- ABYSS
- ANGLERFISH
- APHOTIC
- BENTHIC
- BIOLUMINESCENCE
- CURRENT
- DARKNESS
- GULPER
- HADAL
- MIDNIGHT
- PELAGIC
- PLANKTON
- PRESSURE
- SEAFLOOR
- SUNLIGHT
- TRENCH
- TWILIGHT
- VIPERFISH
The ocean is stacked in zones, from the sunlit surface down to the crushing hadal trenches, and this 18-word puzzle covers the whole descent. Older students and deep-sea fans will meet the anglerfish, the pressure, and the pitch-black aphotic layers. Solve it on screen or print it for an oceanography unit.