Freshwater & Marine Ecosystems

Children seem to naturally show interest in exploring aquatic life. Harnessing this energy can help teach about the importance of water as well as the biological diversity that aquatic environments support. Pond, lake and stream explorations are particularly well suited for programs focusing on Next Generation Science Standards (NGSS) that emphasize inquiry-oriented problem solving. Aquatic environments are usually within reach of any school or nature center, and if not, small ponds can be incorporated into any learning environment. For over three decades, Acorn Naturalists has focused on providing curriculum materials, field supplies, and specialized equipment for exploring freshwater and marine ecosystems.

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  1. Jelly (Medium) Model
    Jelly (Medium) Model
    $5.15
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  2. Crab (Horseshoe) Model
    Crab (Horseshoe) Model
    $8.25
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  3. Crab (Shore) Model
    Crab (Shore) Model
    $9.95
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  4. Crab (Blue) Model
    Crab (Blue) Model
    $10.95
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  5. Crab (Hermit) Model
    Crab (Hermit) Model
    $8.95
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  6. Pond & Stream Sampling Kit
    Pond & Stream Sampling Kit
    $89.95
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  7. Crab (Hermit) Puppet
    Crab (Hermit) Puppet
    $25.95
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  8. Hermit Crab Finger Puppet
    Hermit Crab Finger Puppet
    $11.95
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  9. Lobster Model
    Lobster Model
    $15.45
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  10. Lobster (Spiny) Model
    Lobster (Spiny) Model
    $25.95
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  11. Nudibranch Model
    Nudibranch Model
    $4.95
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  12. Octopus (Orange) Model
    Octopus (Orange) Model
    $12.25
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  13. Octopus (Green) Model
    Octopus (Green) Model
    $6.15
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  14. Build a Beaver Dam® Model Kit
    Build a Beaver Dam® Model Kit
    $139.95
    Out of stock
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  15. Octopus Puppet
    Octopus Puppet
    $37.95
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  16. Reef Squid Model
    Reef Squid Model
    $9.95
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  17. Squid Model
    Squid Model
    $12.95
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  18. Sea Star Model
    Sea Star Model
    $4.05
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  19. Shark (Great White) Tooth Replica
    Shark (Great White) Tooth Replica
    $10.00
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  20. Complete Water Quality Monitoring Kit plus Water Quality Educator CD-Rom
    Complete Water Quality Monitoring Kit plus Water Quality Educator CD-Rom
    $479.95
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  21. Complete Water Quality Monitoring Kit (Refill)
    Complete Water Quality Monitoring Kit (Refill)
    $147.15
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  22. Macromania Kit
    Macromania Kit
    $66.95
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  23. Macromania Kit Expansion
    Macromania Kit Expansion
    $25.45
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  24. Shark (Sand Tiger) Model
    Shark (Sand Tiger) Model
    $6.95
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  25. Shark (Great White) Model
    Shark (Great White) Model
    $7.25
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  26. Ray (Sting) Model
    Ray (Sting) Model
    $8.95
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  27. Ray (Manta) Model
    Ray (Manta) Model
    $10.95
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  28. Ray (Shark) Model
    Ray (Shark) Model
    $7.25
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  29. Shark (Basking) Model
    Shark (Basking) Model
    $7.25
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  30. Optic One
    Optic One
    $7.98
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  31. Urban Water Quality Test Kit
    Urban Water Quality Test Kit
    $59.45
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  32. Shark (Leopard) Model
    Shark (Leopard) Model
    $7.25
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  33. Shark (Tiger) Model
    Shark (Tiger) Model
    $6.75
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  34. Port-A-Bug® Field Observation Container
    Port-A-Bug® Field Observation Container
    $9.95
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  35. Dual Purpose Observation Container
    Dual Purpose Observation Container
    $3.98
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  36. Shark (Blacktip Reef) Model
    Shark (Blacktip Reef) Model
    $7.25
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  37. Shark (Whitetip Reef) Model
    Shark (Whitetip Reef) Model
    $5.95
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  38. Shark (Gray Reef) Model
    Shark (Gray Reef) Model
    $5.95
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  39. Shark (Hammerhead) Model
    Shark (Hammerhead) Model
    $5.95
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  40. Acid Rain Study Kit
    Acid Rain Study Kit
    $79.95
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  41. Shark (Nurse) Model
    Shark (Nurse) Model
    $5.95
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  42. Journaling at the Water's Edge: Student Nature Journal
    Journaling at the Water's Edge: Student Nature Journal
    $6.95
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  43. Shark (Lemon) Model
    Shark (Lemon) Model
    $5.95
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  44. Shark (Megamouth) Model
    Shark (Megamouth) Model
    $6.95
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  45. Nature Circles® Pond & Stream Life Card Set
    Nature Circles® Pond & Stream Life Card Set
    $12.95
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  46. Water Quality Sampler
    Water Quality Sampler
    $314.45
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  47. Shark (Whale) Model
    Shark (Whale) Model
    $14.95
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  48. Shark (Zebra) Model
    Shark (Zebra) Model
    $7.25
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  49. Shark (Thresher) Model
    Shark (Thresher) Model
    $6.95
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  50. Ray Finger Puppet
    Ray Finger Puppet
    $6.45
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  51. Seahorse Model
    Seahorse Model
    $6.15
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  52. Grouper (Goliath) Model
    Grouper (Goliath) Model
    $10.25
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  53. Clown Anemone Fish Model
    Clown Anemone Fish Model
    $9.25
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  54. Flying Fish Model
    Flying Fish Model
    $10.25
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  55. Pond Life (Golden Guide®)
    Pond Life (Golden Guide®)
    $6.95
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  56. Crocodile (Saltwater) Model
    Crocodile (Saltwater) Model
    $15.45
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  57. Pond and Stream Safari: A Guide to the Ecology of Aquatic Invertebrates
    Pond and Stream Safari: A Guide to the Ecology of Aquatic Invertebrates
    $19.95
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  58. Sea Turtle Baby (Ridley) Model
    Sea Turtle Baby (Ridley) Model
    $9.25
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  59. Pond Life (Pocket Naturalist® Guide)
    Pond Life (Pocket Naturalist® Guide)
    $7.95
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  60. Sea Turtle Puppet
    Sea Turtle Puppet
    $33.95
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  61. Sea Turtle (Green) Model
    Sea Turtle (Green) Model
    $6.95
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  62. Alligator Tooth Replica
    Alligator Tooth Replica
    $13.95
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  63. Wow! The Wonders of Wetlands, An Educator's Guide
    Wow! The Wonders of Wetlands, An Educator's Guide
    $21.95
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  64. Sea Turtle (Leatherback) Model
    Sea Turtle (Leatherback) Model
    $6.95
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  65. Sea Turtle (Ridley) Model
    Sea Turtle (Ridley) Model
    $14.95
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  66. Pocket Guide to Eastern Wetlands
    Pocket Guide to Eastern Wetlands
    $18.95
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  67. Pondwatchers: Guide to Ponds and Vernal Pools of Eastern North America
    Pondwatchers: Guide to Ponds and Vernal Pools of Eastern North America
    $4.95
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  68. Swamp Life of the Southeastern USA (Pocket Naturalist® Guide)
    Swamp Life of the Southeastern USA (Pocket Naturalist® Guide)
    $7.95
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  69. Monk Seal Finger Puppet
    Monk Seal Finger Puppet
    $6.45
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  70. Pocket Guide to Eastern Streams
    Pocket Guide to Eastern Streams
    $16.95
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  71. Eyewitness Pond & River (DVD)
    Eyewitness Pond & River (DVD)
    $12.95
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  72. Sea Lion (Basking) Model
    Sea Lion (Basking) Model
    $5.65
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  73. Rainbow Trout Finger Puppet
    Rainbow Trout Finger Puppet
    $9.95
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  74. Salmon Model
    Salmon Model
    $9.95
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  75. Seal (Harp) Model
    Seal (Harp) Model
    $4.95
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  76. Guide to Common Freshwater Invertebrates of North America (A)
    Guide to Common Freshwater Invertebrates of North America (A)
    $39.95
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  77. Sharks (Golden Guide®)
    Sharks (Golden Guide®)
    $6.95
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  78. Laminated Guide to Aquatic Macroinvertebrates
    Laminated Guide to Aquatic Macroinvertebrates
    $4.95
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  79. Walrus Model
    Walrus Model
    $6.45
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  80. Quick Guide to Major Groups of Freshwater Invertebrates
    Quick Guide to Major Groups of Freshwater Invertebrates
    $6.95
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  81. Fly Fishing (Aquatic Insects) Keychain Identification Guide
    Fly Fishing (Aquatic Insects) Keychain Identification Guide
    $7.95
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  82. Manatee Model
    Manatee Model
    $7.25
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  83. Fishes (Golden Guide®)
    Fishes (Golden Guide®)
    $6.95
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  84. Whales, Dolphins, and Other Marine Mammals (Golden Guide®)
    Whales, Dolphins, and Other Marine Mammals (Golden Guide®)
    $6.95
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  85. Dolphin Model
    Dolphin Model
    $5.95
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  86. Freshwater Fishes (Pocket Naturalist® Guide)
    Freshwater Fishes (Pocket Naturalist® Guide)
    $7.95
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  87. Estuary Water Quality Monitoring Kit
    Estuary Water Quality Monitoring Kit
    $60.55
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  88. Dolphin Calf Model
    Dolphin Calf Model
    $2.95
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  89. Saltwater Fishes (Pocket Naturalist® Guide)
    Saltwater Fishes (Pocket Naturalist® Guide)
    $7.95
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  90. Fish Keychain Identification Guide
    Fish Keychain Identification Guide
    $7.95
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  91. Porpoise (Vaquita) Model
    Porpoise (Vaquita) Model
    $4.95
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  92. Fishes (Peterson First Guide®)
    Fishes (Peterson First Guide®)
    $7.95
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  93. Orca Finger Puppet
    Orca Finger Puppet
    $8.95
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  94. Orca (Tail Down) Model
    Orca (Tail Down) Model
    $6.95
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  95. Field Guide to Fishes (National Audubon Society®)
    Field Guide to Fishes (National Audubon Society®)
    $22.95
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