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18 Ocean STEM Activities for Kids

Head under the sea with these cool ocean STEM activities & projects for kids!

We’re diving down deep today to explore ocean zones, marine animals and more with these amazing STEM ocean activities that are perfect for a little summer learning!

If your kids are fans of whales, sharks and the big blue sea, they’ll LOVE these hands-on ocean science activities!


ocean STEM projects and activities for preschool, kindergarten and elementary kids

18 Awesome Ocean STEM Activities

The underwater world is so intriguing to kids (and adults for that matter 🙂  There’s so much we don’t yet know about the ocean and it’s contents which makes it the perfect subject to intrigue young minds.

One of my favorite things about ocean projects is the beautiful colors! 

And the fact that they ocean activities almost always involve water which is a big bonus during the hot days of summer 🙂  Here are a few of our favorite ocean projects along with affiliates links to books and others items that are perfect for some under-the-sea fun!



Before you get started, you may want to read a few ocean-related science books.  One of our favorite non-fiction science series is the Let’s Read & Find Out Science books!  They come in different reading levels and are perfect for kids who are always asking ‘why?’ and ‘how?’! 

For ocean life, try these:

Life in a Coral Reef– explores who lives in a coral reef and why reefs are so important to the ocean ecosystems!

Sharks Have Six Senses– is a great non-fiction book for kids who are enthralled with sharks.  LOTS of cool facts included!

How Deep Is the Ocean?– an introduction to the various ocean zones, what you find as you travel through ocean layers and what exists at the bottom of the big blue sea!

What’s It Like to Be a Fish? – a fun look at life as a fish with details about how life in the ocean is different from life on land.

Plus, be sure to check out our list of fun Ocean Activities and Books for Kids too!!


Ocean Science Activities

Learn why the ocean looks blue with this Layers of the Ocean science project! || Edventures with Kids

Learn about life underwater with Professor Noggin’s Life in the Ocean cards || Amazon

Grab this FREE prinable Under the Sea Scavenger Hunt & use live webcams to find all the items || Edventures with Kids

Watch for the tide to go out and then explore your own tide pool || Amy Pessolano

Check out the Ocean Science Unit printable pack for LOTS of learning activities! || Etsy

Explore sea-side habitats and tides on your next beach visit || Edventures with Kids

Try hunting for Shark Teeth! || The Educator’s Spin on It  (and don’t worry if you strike out; you can actually buy your own Shark Teeth on Amazon 🙂


Ocean-themed Math Projects

Draw a Life-size Whale and see just how big they are with this easy math activity || Edventures with Kids

Create ocean zones using sidewalk chalk with this Ocean Layers STEM Activity scale model || Edventures with Kids

Practice counting with a Shark Number Sensory Bin || Living Montessori Now

Create your own Ocean Slime || Little Bins for Little Hands

Practice adding and number sequencing with Ocean Raiders, an award-winning math game || Amazon

Ocean science and math activities for preschool and elementary kids


Under the Sea STEM: Engineering Projects

Build your own Ocean in a Jar || Edventures with Kids

Construct a Cartesian Diver Experiment || Wise Owl Factory

Make your own Tide Pool to explore Ocean Science || Buggy & Buddy

Build Ocean Animals from LEGOs to play in the slime! || Little Bins for Little Hands


Ocean Animal Science Activities

Learn about Stingrays with these Fun Facts for Kids || Edventures with Kids

Did you know a group of sharks is called a shiver?  Learn the names of Ocean animal groups with this FREE printable || Edventures with Kids

Print these gorgeous Ocean Animal families & Whales mini-posters || Etsy

Learn How Sharks Float || Preschool Powol Packets

Explore marine life with an Ocean Sensory Table || Stir the Wonder

Discover more about whales with a Whale Sensory Bin || Living Montessori Now

Kids will LOVE this Search & Find Ocean Animal Puzzle with more than 40 types of sea animals!  || Amazon


ocean STEM activities for kids

More Ocean Activities for Kids:

Keep exploring with these fun activities focused on ocean animals and life at the beach!

10 Books for a Day at the Beach

8 Ocean & Beach Activities