Secular Homeschool Marine Biology
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This past school year, we have been learning all about marine biology. My kids are going through a phase where they are fascinated by aquatic animals, so I figured a homeschool marine biology curriculum would be a great way to capitalize on their interests.
I spent much of last spring and early summer searching for a secular homeschool marine biology curriculum to purchase. I was shocked that I couldn’t find anything!
My family is Lutheran, but we generally prefer to use secular curricula. It is just our personal preference. There is really a lack of homeschool secular science above the elementary school years, though.
I really wanted to capitalize on my kids’ interest in narwhals and sharks, so I decided to create my own homeschool marine biology curriculum.
Secular Homeschool Marine Biology Curriculum Resources
I created this homeschool marine biology curriculum the same way I create unit studies – by combining books, videos, activities, and field trips.
At the bottom of this post, I will share how I organized it all into one cohesive homeschool marine biology curriculum.
Secular Marine Biology Textbook
We used Marine Biology: An Introduction to Ocean Ecosystems by Amy Sauter Hill as the spine of our curriculum. I purchased the student book, teacher’s guide, and lab manual.
Last update on 2026-09-17 / Affiliate links / Images from Amazon Product Advertising API
Student book – This serves as the textbook. Students read the chapters and answer the questions. I like to teach science to both of my kids at the same time, so I read the chapters aloud. The questions served as our discussion topics.
Teacher’s guide – Each chapter of the teacher’s guide provides the main topic, answers to the student book questions, and a related lab activity.
This book is intended for grades 9 – 12, but it felt a bit light to me. My kids were in 5th and 8th grades this year, and it was perfect. There are only 130 pages in the student book, and some chapters only contain a few pages.
That is okay, though. It is easy enough to supplement with additional materials to bulk up the lessons.
Lab manual – Each chapter is accompanied by a related lab activity. This is the same lab activity mentioned in the teacher’s guide, but the lab manual gives more detailed directions.
The student book was a really helpful spine to our curriculum, but the teacher’s guide and lab manuals were not very useful. I read the chapters with my kids, so I already knew the answers to the questions.
The lab activities were really impractical. I, and I suspect most people, do not have easy access to sand from multiple beaches, kelp recently washed ashore, a hydrometer, or a sample of bioluminescent dinoflagellate.
I also don’t want to buy a pet goldfish so that we could “Observe a fish’s response to wave action in a simulated rocky-shore environment.” No, thank you.
Supplemental Homeschool Marine Biology Book
The Marine Biology Coloring Book was the perfect book to supplement our homeschool marine biology curriculum.
This isn’t just a regular coloring book. It is a scientific coloring book. Each page has a detailed and labeled picture for students to color. The opposite page is full of information about the topic.
We skipped around a bit, but it correlated nicely with our marine biology spine. We used this book every single week.
Last update on 2026-09-17 / Affiliate links / Images from Amazon Product Advertising API
There are so many wonderful books available on every marine biology topic. Every week, I would request a few books from our library that matched up with our area of study.
Marine Biology Videos
We watched a lot of nature documentaries on Netflix over the course of the year. Being able to see videos of marine life in the wild really helped keep interest levels high throughout the entire year.
- Blue Planet
- Blue Planet II
- Life in the Blue
- Chasing Coral
- Mission Blue
- Frozen Planet
- A Plastic Ocean
Homeschool Marine Biology Activities
The easiest way to find marine biology activities that can be done at home is to search on Pinterest. Just type your topic into the search bar and see what comes up.
Don’t be afraid to use hands-on activities and crafts with older kids. They love this stuff too!
When in doubt, have your student draw what they learned. Switch up the materials every once in a while to keep it interesting.
One time, we even used icing to draw the ocean floor on a pan of gluten-free brownies!
I have linked our favorite activities below in the marine biology curriculum outline.
Marine Biology Field Trips
The marine biology field trips available to you will depend on where you live. We live in the Raleigh, NC area – about 2 hours from the coast. We are lucky to have a plethora of relevant field trips within an easy day-trip drive.
Before you leave home, be sure to check the location website for a visitor guide.
Any museum with an aquatic exhibit – the NC Science Museum in downtown Raleigh has several whale skeletons and exhibits.
Aquarium – North Carolina homeschoolers, you can visit the aquarium once each year for FREE! Don’t worry if you do not live near an aquarium. There are online aquarium webcams that you can check out right from your home:
- Aquarium of the Pacific has several webcams – penguins, sharks, jellyfish, tropical reef, and wrasses
- Monterey Bay Aquarium offers – coral reef, jellyfish, kelp forest, Monterey Bay, open sea cam, penguins, sea otters, and sharks
- Georgia Aquarium – African penguin, sea lion, barrier reef, piranha, sea otter, beluga whale, ocean, and jellyfish
- National Aquarium – blacktip reef sharks, blue blubber jellies, and coral reef
Related: 17 Free Virtual Aquarium Tour Ideas
Beach – If you are planning to look for shells, make sure you bring this shell identification guide. It is the perfect size for slipping into a beach bag and is laminated to protect it from the water and sand.
Homeschool Marine Biology Curriculum Outline
This is the marine biology homeschool curriculum outline I created and used with my own children. One of the key benefits of homeschooling is being able to adapt any curriculum to the needs and interests of our own children.
Don’t be afraid to add or subtract resources to make this a customized plan for your students.
I. Chapter 1: The Living Sea
- Read the chapter and answer questions
- Coloring page: 1 Ocean Currents and Global Weather
- Coloring page: 3 Tides
- Activities – Create a diagram of the ocean floor – Encourage your kids to research a diagram of the ocean floor and then draw it. My kids loved drawing the ocean floor with icing on a pan of brownies. They always pay extra attention when food is involved!
- Explore ocean salinity and density
II. Chapter 2: Coral Reefs
- Read the chapter and answer questions
- Coloring page: 12 Types of Coral Reefs
- Coloring page: 13 Coral Reef Residents
- Coloring page: 22 Sponge Morphology
- Coloring page: 47 Coral Reef Fish
- Watch Blue Planet episode: Coral (Netflix)
- Activities – Coral reef lapbook
III. Chapter 3: Islands
- Read the chapter and answer questions
- Watch Galapagos: episode 1 (Netflix)
IV. Chapter 4: Estuaries
- Read the chapter and answer questions
- Coloring page: 30 Bivalves
- Coloring page: 26 Innkeeper Worm
- Coloring page: 37 Crabs
- Coloring page: 83 Crab Life Cycle and Reproduction
- Observe and dissect: oysters, clams, and crabs
- Draw the 4 estuarine communities on a piece of paper folded into 4 sections
V. Chapter 5: Shallow Bays, Lagoons, and Inland Waterways
- Read the chapter and answer questions
- Coloring page: 53 Sea Snakes
VI. Chapter 6: Sub-tidal Soft Bottoms
- Read the chapter and answer questions
- Coloring page: 10 Sub-tidal Soft Bottoms
- Coloring page: 39 Sea Star Structure
VII. Chapter 7: Sandy Beaches
- Read the chapter and answer questions
- Coloring page: 9 Sandy Beach
- Coloring page: 53 Turtle
- Coloring page: 56 Shore Birds
- Research sea turtle conservancy
VIII. Chapter 8: Rocky Shores
- Read the chapter and answer questions
- Coloring page: 5 Rocky Shores
- Coloring page: 29 Interior of a Shell
- Coloring page: 31 Shelled Gastropods
- Coloring page: 59 Marine Mammals
- Coloring page: 60 Pinnipeds
- Dissolve a sea shell
IX. Chapter 9 Tide Pools
- Read the chapter and answer questions
- Coloring page: 6 Tide Pools
- Coloring page: 20 Green Algae
X. Chapter 10: Kelp Forests
- Read the chapter and answer questions
- Coloring page: 11 Kelp Bed
- Compare kelp forests with terrestrial forests
XI. Chapter 11: Open Ocean
- Read the chapter and answer questions
- Coloring page: 14 Photic Zone
- Coloring page: 19 Plankton
- Coloring page: 43 Fish Morphology
- Coloring page: 44 Locomotion
- Coloring page: 45 Pelagic Fish
- Coloring page: 51 Sharks
- Coloring page: 52 Rays and Relatives
- Coloring page: 58 Oceanic Birds
- Coloring page: 61 Whales and Echolocation
- Coloring page: 62 Baleen Whales
- Watch Blue Planet – the Open (Netflix)
XII. Chapter 12: The Abyss
- Read the chapter and answer the questions
- Coloring page: 69 Bio-luminescence
- Coloring page: 70 Bio-luminescence
- Watch Blue Planet – the Deep (Netflix)
XIII. Chapter 13: Polar Seas
- Read the chapter and answer the questions
- Watch news clips of the Exxon Valdez oil spil
- Watch Blue Planet – the Frozen (Netflix)
- Blubber Crisco experiment
XIV. Chapter 14: Environmental Ethics
- Read the chapter and answer the questions
- Brainstorm actions we can take to protect the ocean
- Research effects of plastic on the ocean
- Choose one endangered ocean animal to research
XV. Career Exploration – Marine Biologist
- Research the real roles of a marine biologist
- Research the educational job requirements
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