Whether you are playing a visit to the beach or setting up an under the sea theme in the classroom, ocean activities are the perfect opportunity to explore simple science ideas with hands-on play!  Fun ocean activities and ocean crafts to learn, play, discover, and explore one of the best places on Earth, the beach!  These ocean activities are perfect for summertime! Find simple hands-on STEM and sensory ideas suitable for preschoolers to early elementary. We love playful learning ocean activities that will make everyone smile!

FUN OCEAN ACTIVITIES AND OCEAN CRAFTS FOR KIDS!

Easy and fun ocean activities for kids

OCEAN THEMED CLASSROOM

Every summer we have the chance to visit the ocean for a couple weeks. What a wonderful time it is exploring the beaches and the tidal pools. Each year we explore a bit more and learn a bit more. Our ocean activities and experiments are inspired by our time by the ocean. These ocean activities and ocean crafts for preschoolers are an opportunity to build simple skills, make observations, and discover changes. I can’t wait to see what this Summer will bring!

There are so many ocean activities to explore! Check out all our fun ideas below for easy ocean play and learning!

FUN OCEAN ACTIVITIES FOR KIDS

Click here for your FREE Printable Ocean Activities.

 

BEACH IN A BOTTLE

Make a fun sensory bottle with a beach theme. Science discovery bottles are a great way for little hands to explore!

Beach Discovery Bottle Science and Fine Motor Skills Activity

BEACH EROSION

Have you ever noticed what happens to the coast line when a big storm rolls through?  What you are noticing is the effect of coastal erosion, and now you can set up a beach erosion activity and demonstration to show your kids what’s happening.

BEACH RECYCLING ACTIVITY

A simple ocean recycling activity to learn about pollution in the oceans and the importance of recycling.  An awesome play activity and a great learning experience all in one!  

YOU MAY ALSO LIKE:  Recycling Science Projects

Ocean Recycling Cover Photo

BUILD A LEGO SHARK

Even if you don’t have any interest in the official Shark Week, these cool ocean fish have always amazed adults and kids!  Check out how to build your own LEGO sharks!

build a LEGO shark

GLOWING JELLYFISH CRAFT

Make a fun DIY jellyfish that will glow in the dark, similar to jellyfish in the ocean.  Learn fun facts about jellyfish, and how they really aren’t fish.  
Ocean jellyfish craft for kids that glows in the dark to explore bioluminescence.

HOW DO FISH BREATHE UNDERWATER?

Fish are fun to look at in an aquarium or to try to catch in a lake, but did you know that fish breathe? Learn more about how fish breathe with this simple model for how fish gills work.

How do fish breathe ocean science experiment for kids

HOW DO SHARKS FLOAT?

Or why is it that sharks don’t sink in the ocean? Learn about how these great fish coast around through the ocean with this simple ocean science activity.

Check out more awesome shark week activities here.

shark experiment

HOW DO WHALES STAY WARM?

The ocean can be a chilly place, but there are many mammals who call it home! How do some of our favorite mammals live in such cold conditions? It is to do with something called blubber. Test out how blubber works as an insulator right in the comfort of your kitchen with this blubber experiment.

what is blubber

ICY OCEAN SENSORY BIN

This fun preschool ocean activity will really keep the kiddos engaged as they free sea creatures from the icy, frozen ocean! Learn about different forms of matter with this simple ice melt science activity!

ocean sensory science activity for summer STEM

LAYERS OF THE OCEAN

Just like the earth, the ocean is also made up of layers.  Explore the layers of the ocean with this cool liquid density experiment.  layers of the ocean science activity

LEGO SEA CREATURES

Check out our ocean animal and sea creature ideas and then make your own! Don’t worry if you don’t have exactly the right colors, just have fun!

LEGO ocean animals

Click here for your FREE Printable Ocean Activities.

NARWHAL FUN FACTS

Learn about the amazing unicorns of the sea, Narwhals with these fun and easy STEM activities.  Plus, we share with you fun facts we’ve discovered about Narwhals.

OCEAN CURRENTS

Learn about ocean currents with a few simple ingredients you can grab from the kitchen. Make this simple ocean currents model and discover what things cause the movement of water in the ocean.

ocean currents demonstration for ocean science with kids

OCEAN IN A BOTTLE

Explore 3 ways to create your own gorgeous and playful ocean in a bottle.  Another fun variation of our ocean sensory bottle above!

OCEAN SALT PAINTING

Combine a popular kitchen ingredient and a bit of physics for cool art and science that everyone is sure to love! Even take this ocean activity outside on a lovely day.

OCEAN SENSORY BOTTLE

Here’s another version of our popular glitter bottle that is fun for young kids to make and explore.

Ocean discovery bottle summer sensory activity for kids

OCEAN THEME FLUFFY SLIME

This is the best fluffy slime ever for a hands-on ocean theme activity for kids! Our easy to make fluffy slime recipe is so quick and simple, you will be whipping up mounds of the lightest, puffiest slime you have ever seen. Decorate with shells and gems or small plastic sea creatures!

Best Ocean Fluffy Slime Recipe for an Under The Sea Theme or Mermaid Fluffy Slime!

OCEAN SLIME

Swirling ocean waves of color! Make our ocean slime recipe for an AWESOME under the sea theme this summer.

ocean slime

OCEAN WAVES IN A BOTTLE

Create an ocean wave bottle as a fun way to demonstrate a little bit about how waves work.  Combine learning about the ocean with a visually appealing sensory bottle for fun and playful learning for kids.

ocean in a jar

OIL SPILL EXPERIMENT

Explore what things clean up oil and what doesn’t with this easy ocean science experiment.  Get kids thinking about why it’s important to keep our oceans clean!

learn about pollution of the oceans with this oil spill activity for kids

SALT DOUGH STARFISH CRAFT

Make your own starfish or sea stars with our simple salt dough recipe.  Learn about these amazing sea creatures while modeling out your own to keep.

sea star craft for under the sea theme for preschoolers

SAND SLIME

Another awesome homemade slime recipe, this sand slime can be made with actual beach sand or craft sand!  This is a fun hands-on science activity for an under the sea preschool theme.

Beach Sand Sensory Slime Science Experiment Sensory Play

SEASHELLS IN VINEGAR EXPERIMENT

Find out what happens to shells when you add them to vinegar.  Learn what seashells are made of and why we need to protect our oceans!

What happens when you put seashells in vinegar? Can you dissolve a seashell for simple ocean science activities with kids!

SQUID LOCOMOTION ACTIVITY

Explore how squid swim or move through the ocean with this fun squid locomotion activity.  Learn more about these fascinating sea creatures!How does a squid move for ocean science with kids

FUN OCEAN ACTIVITIES AND OCEAN CRAFTS FOR KIDS!

Discover more fun and easy science & STEM activities right here. Click on the link or on the image below.

Best ever STEM and science activities for kids.

Check out The Complete Ocean Science and STEM Pack in our SHOP!