| No. | Item | Definition |
|---|---|---|
| 1. | adult | fully grown animal |
| 2. | algae | simple water plants |
| 3. | anemone | stinging tentacled sea animal |
| 4. | angelfish | tall tropical aquarium fish |
| 5. | aquarist | person managing aquarium animals |
| 6. | aquarium | tank for aquatic life display |
| 7. | barnacle | small shellfish stuck to surfaces |
| 8. | barracuda | long fast predatory fish |
| 9. | beluga | small white whale |
| 10. | betta | bright territorial aquarium fish |
| 11. | blubber | thick insulating body fat |
| 12. | bottom | lowest part of tank |
| 13. | brackish | slightly salty mixed water |
| 14. | bubble | small ball of air |
| 15. | camouflage | coloring that helps hide |
| 16. | catfish | whiskered bottom-dwelling fish |
| 17. | clam | two-shelled mollusk |
| 18. | claw | pincer used for grasping |
| 19. | clownfish | orange striped reef fish |
| 20. | coral | hard reef-building animal |
| 21. | crab | side-walking shelled sea animal |
| 22. | current | flowing movement of water |
| 23. | depth | distance below surface |
| 24. | diet | usual food an animal eats |
| 25. | diurnal | active during daytime |
| 26. | dolphin | intelligent marine mammal |
| 27. | driftwood | waterworn wood in exhibits |
| 28. | ecosystem | community of living things |
| 29. | eel | long snake-like fish |
| 30. | egg | developing young in shell |
| 31. | endangered | at risk of extinction |
| 32. | estuary | where river meets sea |
| 33. | exhibit | public display area |
| 34. | filter | device that cleans water |
| 35. | fin | flat swimming body part |
| 36. | fish | aquatic animal with gills |
| 37. | flipper | broad limb for swimming |
| 38. | freshwater | water without much salt |
| 39. | gill | organ used to breathe water |
| 40. | goldfish | common orange pet fish |
| 41. | gravel | small stones on tank floor |
| 42. | grouper | large thick-bodied reef fish |
| 43. | guppy | small colorful freshwater fish |
| 44. | habitat | natural home of an animal |
| 45. | hatchling | young animal newly hatched |
| 46. | heater | device warming tank water |
| 47. | herbivore | plant-eating animal |
| 48. | ink | dark defensive squid fluid |
| 49. | invertebrate | animal without backbone |
| 50. | jellyfish | gelatinous drifting sea animal |
| 51. | juvenile | young not fully grown |
| 52. | keeper | person caring for animals |
| 53. | kelp | large brown seaweed |
| 54. | lagoon | shallow coastal water area |
| 55. | larva | early immature life stage |
| 56. | lighting | artificial light for exhibits |
| 57. | lionfish | striped fish with venomous spines |
| 58. | lobster | large clawed crustacean |
| 59. | mammal | warm-blooded animal with milk |
| 60. | manatee | large gentle sea mammal |
| 61. | mollusk | soft-bodied invertebrate |
| 62. | mussel | dark-shelled bivalve mollusk |
| 63. | nocturnal | active at night |
| 64. | nudibranch | bright shell-less sea slug |
| 65. | octopus | eight-armed sea animal |
| 66. | omnivore | animal eating plants and meat |
| 67. | orca | black-and-white toothed whale |
| 68. | otter | playful fish-eating mammal |
| 69. | oyster | edible shellfish with rough shell |
| 70. | penguin | flightless swimming bird |
| 71. | piranha | sharp-toothed freshwater fish |
| 72. | plankton | tiny drifting organisms |
| 73. | predator | animal that hunts others |
| 74. | prey | animal hunted for food |
| 75. | pump | device moving water |
| 76. | ray | flat fish with winglike fins |
| 77. | reef | rocky coral habitat |
| 78. | reptile | cold-blooded scaly animal |
| 79. | rock | hard natural stone |
| 80. | seahorse | small fish with curled tail |
| 81. | seal | flippered marine mammal |
| 82. | seaweed | marine plantlike growth |
| 83. | shark | large predatory fish |
| 84. | shrimp | small swimming crustacean |
| 85. | snapper | marine fish with strong jaws |
| 86. | squid | ten-armed sea animal |
| 87. | starfish | star-shaped sea animal |
| 88. | tang | bright reef fish |
| 89. | tank | large water container |
| 90. | tentacle | long flexible grasping limb |
| 91. | thermometer | tool measuring temperature |
| 92. | tidepool | rock pool left by tide |
| 93. | touch tank | interactive shallow exhibit |
| 94. | turtle | shelled reptile that swims |
| 95. | urchin | spiny round sea animal |
| 96. | venom | poison delivered by bite |
| 97. | vertebrate | animal with backbone |
| 98. | water | clear liquid filling exhibits |
| 99. | wave | moving ridge of water |
| 100. | whale | very large marine mammal |
