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22 Hands-on Fun Ocean Sea Shell Activities For Teens

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This post may contain affiliate links. For more information, please see my full disclosure policy.

I have 22 fun ocean sea shell activities for teens. Also, you’ll love more ideas on my pages Oceans, Homeschool Middle School and How to Homeschool High School.

There seems to always be a lot of fun ocean seashell crafts for the younger kids but not so much for older kids and especially teens.

I found a great list of crafts that are fun and more challenging.

From tinkling wind chimes to elegant artwork there are plenty of choices here to use for fun craft projects that will brighten up their room or have a special place on the mantle

22 Hands-on Fun Ocean Sea Shell Activities For Teens

Before we get into the more creative stuff, let’s answer a couple of important questions about these beautiful beach treasures.

You can ask your teen and have him research the answers on their own or read to them about shells while they work on a craft.

And yes, teens still liked to be read to.

What Is A Sea Shell?

A seashell is a mollusk’s abandoned exoskeleton.

It was their protection, home, and a place for their muscle to attach to. 

While ocean sea shells seem to come in an endless variety of shapes, they’re all really versions of the same fundamental pattern – a spiral.

How Are Seashells Made?

During their daily life mollusks draw in salts and chemicals from the water around them.

As they process the materials, they secrete the calcium carbonate, which hardens on the outside of their bodies and begins to form the hard outer shell.

 As they continue excreting the calcium carbonate the surface grows and grows.

What Kind Of Creatures Live In Seashells?

  1. Clams
  2. oysters
  3. scallops
  4. and sea snails to name some.
22 Hands-on Fun Ocean Sea Shell Activities For Teens

If you don’t already have seashells on hand from your beach trips, you can grab one of these mixed bags off Amazon to use.

Then, I thought this tutorial on How to drill a hole in a shell would come in handy for a lot of projects below.

More Summer Fun Ideas for Teens

Next, look at these other ideas for teens.

22 Hands-on Fun Ocean Sea Shell Activities For Teens

Finally, look at these 22 ocean sea shell activities for teens.

22 Ocean Sea Shell Activities

Nothing shouts in summer more than hitting the beach, learning about the ocean and doing some fun seashell activities.

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

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This post may contain affiliate links. For more information, please see my full disclosure policy.

I have 10 sea shell activities today. And your kids will love making these fun crystal sea shells. Grab more ideas on my Seashore Watching Unit Study and Beach Lapbook.

Sea shell activities are a fun way to explore one of your favorite parts of the beach.

If you find yourself with an abundance of sea shells from your beach visits or you just want to have some seashell-themed fun I have a fun learning activity.

 I have dug up 10 great sea shell activities and put together one of my own for you.

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

You can observe and describe seashells, identify them with a favorite guide or reference book or use them for a multitude of crafts and activities.

I am sharing a tutorial today for how to make crystal seashells.

This is an activity that can be educational as well as pretty.

Your child can place these glittery shells alongside the plainer ones on your science shelf to remember the fun they had watching them grow crystals.

Gather up handfuls of your favorite seashells and let’s see what kind of fun and learning we can do with them.

10 Stupendous Sea Shell Facts

First, look at these facts about sea shells.

  1. A sea shell is a hard, protective outer layer usually created by an animal that lives in the sea.
  2. Mollusks can make their shells become different colors by eating a variety of colorful food. Eating red seaweed gives some sea animals a red shell.
  3. There is more to the pattern of the seashell than just being pretty. Scientists believe that mollusks use the patterns and colors as engineering blueprints. The design of the shells helps the animal know where to place their mantle, ensuring they grow its shell in the right spots.
  4. People used to use sea shells as currency, even as far back as Pompei.
  5. 90% of shells are dextral, meaning their shells open to the right.
  6. There are over 100,000 varieties of mollusks including snails, clams, mussels, scallops, oysters, and more.
  7. The official term for someone who collects shells is a “conchologist”.
  8. You can guess the age of shells, a scallop, for example, produces about a ridge per day. 
  9. The largest sea shell is the Australian Trumpet, weighing up to 40 lbs.
  10. Sea shells are an excellent source of calcium carbonate making them a great choice for adding calcium to your garden beds.
10 Sea Shell Activities for Kids and Make Crystal Sea Shells

10 Sea Shell Activities

Get your shell on with these fun and beachy-themed crafts and activities you can do with your sea shells.

  1. Sea Shell Sand Craft
  2. Sea Shell Necklaces
  3. How to Dye Rainbow Seashells
  4. Seashell Science and Math
  5. Storytelling Seashells
  6. Sea Shell Decorations
  7. Sea Shell Craft Project
  8. Ocean-Themed Playdough Invitation
  9. Glittery Seashells
  10. Sand Clay Handprint Keepsake with Seashells
10 Sea Shell Activities for Kids and Make Crystal Sea Shells

More Sea Shell Activities and Beach Resources

Also, look at more summertime and sea shell fun.

In addition, look at these fun books.

4 Seashells Books for Kids

Add one or two of these books or resources to your unit study about sea shells.

Also, look at some of the science before we make this fun sea shell borax crystal.

Crystal Sea shell Science

Before we soak up the next activity let’s look at some of the science behind it.

First, it is important to know that hot water holds more borax crystals than cold or room temp. 

This is because the hot water molecules move far apart and make room for the borax crystals to dissolve.

You can extend this experiment by trying the same measurements of borax and water with different water temperatures.

As the solution cools down the saturated water molecules come back together and force the particles out of the solution.

They will then land on the nearest surface (sea shells) and then they will keep building up to form crystals.

Once dried you will really be able to see the unique crystal shapes, and how they build on different surfaces like the edges, ridges, cavities, etc/

You can purchase sea shells online or even at dollar tree but how much fun is it to use the ones you found on your last beach vacation?

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

Finally, let’s make crystal sea shells.

How to Make Crystal Seashells

You will need:

  • Seashells
  • 4 cups hot water
  • ¼ to ½ cup borax
  • Shallow glass container
10 Sea Shell Activities for Kids and Make Crystal Sea Shells

Directions:

Heat the water in a microwave-safe container.

You can do it in a shallow glass container or a spouted glass measuring cup is perfect for pouring later in the activity.

The water doesn’t have to be boiling but you want it hot, as it is necessary to melt and absorb the borax crystals.

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

Stir in the borax a few tablespoons at a time, adding more and more until it no longer dissolves.

This means the water is fully saturated.

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

Place seashells in the bottom of a shallow glass dish and give a little space between each of them.

Lay them down upside down and right side up to observe what happens with the crystallization.

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

Place the shallow dish in an area where they will not be disturbed.

Wait at least 24 hours before you check them for crystals.

Moving them around and removing them from the water will disturb the crystallization process.

Once they are done lay on a paper towel to dry.

Investigate your shells with a magnifying glass and a favorite resource book.

You can see here that the crystals started filling in the cavity of this conch.

10 Sea Shell Activities for Kids and Make Crystal Sea Shells

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

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This post may contain affiliate links. For more information, please see my full disclosure policy.

You’ll love these edible beach crafts for teens for fun summer learning. Also, look at my page Seashore Watching Unit Study and Beach Lapbook for more fun beach ideas.

Does your teen love to cook and craft?

If you are looking for a fun summer craft for a teen which is also edible, you’ll love the edible beach glass.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

This edible beach glass is adorable and delicious. It’s a great way to learn how beach glass is made.

Then there are the life skills cooking teaches, and some science and math worked into the simple recipe as well.

I also think it’s a great art project.

Whether the edible beach crafts are to be used as part of a unit study or for a fun summer-themed snack there are plenty of great ideas here.

So, include these excellent facts about beach glass.

5 Fun Facts About Beach Glass

  1. Beach glass is the debris left behind by broken bottles and jars which have been broken. The pieces are worn smooth, have a frosted appearance from the combination of the waves, and the sand wearing them down.
  2. There is a glass beach in Fort Bragg, California, but they don’t let you take souvenirs home with you.
  3. Beach glass is also known as sea glass, mermaid’s tears, and sea pearls.
  4. Common colors to find are clear, brown, green, and blue. Rarer to find are colors turquoise, yellow, and pink. Occasionally even red.
  5. Sea glass/beach glass can be found in many parts of the world. It is commonly found along the coasts of England and New England, North and South Carolina, Kauai Island in Hawaii, and California. There is also sea glass along the beaches of the Great Lakes, but it does look different than the glass found tossed about in the ocean.

5 MORE Facts about Beach Glass

  1. To age sea glass look at the tint- a light purple shade will be newer as manganese is added to the glass and turns purple with sun exposure, a green shade indicates that the glass is older.
  2. Sea glass is highly collectible and is used in jewelry, glass mosaics, wind chimes, to decorate frames or even just stored in a mason jar.
  3. It is much harder to find beach glass these days. More people are hunting for it on the beaches and many glass items packing items have now been replaced with plastic.  
  4. Due to more storms and the reshaping of the shoreline, the best time to find beach glass is spring.
  5. While often used interchangeably sea glass and beach glass are not the same thing. Sea glass is found on saltwater beaches, and beach glass on freshwater beaches.  The main difference in appearance is that the lakes aren’t as rough so there is not as much tumbling, making it less frosted and might even still have some shine to it.
10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Too, look at these other edible beach crafts for teens.

10 Edible Beach Crafts for Teens

  1. Let them get creative with these Strawberry Sea Creature Snacks and see what they come up with.
  2. Delicious for a hot summer day- Ocean Blue Lemonade Popsicles. I have added these Shark Attack Cheesecakes to my must-make recipe list, don’t they look amazing?
  3. What a great art and cooking project this Edible Sugar Seashells and Sand recipe is.
  4. These sand dollar cookies are just too precious.
  5. Simple but these Beach Pudding Cups are a tasty and cute beach-themed treat.
  6. Pinchable cute Beach Crab Sandwiches look delicious.
  7. Learn how to Make a Sandcastle Cake.
  8. Semi-healthy and a fun theme- Beach Ball Fruit Pizza.
  9. I bet these Butterscotch Crunch Starfish are amazing.
  10. Make a Fun Edible Coral Reef

More Beach Crafts for Teens Activities

Summer Crafts for Kids

Also, add some summer crafts to keep summer fun for teens.

Grab a copy of Ocean Anatomy, not a heavy textbook, but rather a fun and beautifully illustrated flip-through full of great facts about the ocean and all that is in it.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Finally, look how to make fun edible beach glass.

Beach Crafts For Teens Make Edible Beach Glass

I highly recommend using flavorings coconut, mango, and banana to add a little something extra to your edible beach glass but it is delicious with just the sugar flavor as well.

You will need:

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Directions:

Clip your candy thermometer onto the side of a medium-sized pan so that it doesn’t quite touch the bottom.

Combine water, sugar, and corn syrup into the pot and stir together.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Cook over medium heat, stirring frequently, until the temperature on the candy thermometer reaches 300 degrees.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

At this point, you must work very quickly so be sure to have all your add-ins ready to go with the caps removed, heat-safe bowls, silicone mat, food coloring, and flavorings.

Carefully remove from the heat and divide ⅓ of the mixture into 2 heat-safe containers like these Pyrex measuring cups.

Quickly stir a bit of green and blue food coloring as well as a bit of the flavoring oil into two of your containers. Leave the third clear but feel free to add flavor.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Pour the mixture from the pan and your containers onto your silicone mat quickly.

Beach Crafts

You don’t need to be neat just make a large blob shape. If it has started to set up, you can place the pan back on the heat for a minute or the glass cups into the microwave for 30 seconds to soften the mixture.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Allow it to cool completely until hard, this should only take 10-15 minutes but you can pop it in the fridge to speed up the process a bit.

Transfer the hardened pieces to a zipper bag or cover them with waxed paper and hit them with a little mallet or against the counter to break them up into smaller pieces.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Add pieces to a separate ziploc bag and add a few spoons of powdered sugar, shake to coat everything. This keeps them from sticking together and gives your beach glass the dull frosted appearance of real beach glass.

10 Edible Beach Crafts For Teens and Make Edible Beach Glass

Dust off excess powdered sugar.

Check out this side-by-side of real beach glass and edible beach glass, you can hardly tell the difference!

10 Edible Beach Crafts For Teens and Make Edible Beach Glass