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Plastic Egg Submarines

April 10, 2019 by OneMommy

Are you looking for some fun ideas to keep the kids occupied this spring and summer?

Kids of all ages love STEM activities.  They tend to be very hands-on, allowing kids to be creative and have fun, all while learning.

Even preschoolers can get in on the fun when it comes to STEM. 

Your child will have fun making their very own plastic egg submarine.

fun preschool sink & float STEM activity

 

Affiliate links have been used below.  See my full disclosure here. 

 Plastic egg activities like this one are lots of fun.

Making these egg submarines with plastic Easter eggs was a huge hit with my preschooler.   

Not only did he have fun experimenting and playing with water, but it was a great activity for the letter “S” in our preschool vehicle activities for the alphabet.

This activity was inspired by this Sink the Easter Egg activity.

Plastic Egg Submarine

Materials Needed:

  • Plastic Eggs
  • Pom poms, beads, and other small items that fit in the eggs
  • Coins
  • Clear Tape (optional)
  • Game Dice (1-2)

The object of this activity is to figure out how to make your plastic egg sink like a submarine.  (In the fall try our pumpkin sink or float activity.)

I had a collection of beads, pom-poms, pennies and quarters on hand to use to help sink our plastic egg submarines.

We used 4 eggs and rolled a game die to see how many of each object would go into each egg.

Then I asked the preschooler to guess whether or not the submarine would sink or float, and we set each egg in the water.  (If your eggs have holes in the ends, you will want to use a bit of clear tape to cover them.)

plastic egg submarines

 

We soon discovered that the pom-pom egg floated at the very top of the water.

The one with a few beads was also at the top.

The submarines with pennies and quarters sank part way.

How to Make Plastic Easter Eggs Sink

We tried completely filling one egg with the pom-poms, one with beads, one with pennies, and one with quarters.

Before placing our submarines into the water this time, we put a few of each item (pom-pom, quarter, etc.) into the water.  The preschooler noticed that the pom-pom and some of the beads floated, while the coins sank right away.

We talked briefly about why that may be.

Then we tried our newly filled eggs.

preschooler submarine activity

 

The preschooler was very happy to see the penny and quarter-filled egg submarines sank to the bottom.

When he realized the bead and pom-pom ones were still not sinking, we talked about how the plastic eggs still had air in them, helping them float.

Then we tried filling those spaces with water — success!  The plastic egg subs all sank.  

The preschooler continued filling eggs, watching them sink or float while I prepared lunch.  He asked to continue playing after lunch, too.

This plastic egg submarine STEM activity is a simple sink and float science activity that your preschooler will love.  

You may also want to try some of these other preschool STEM activities.  

plastic egg submarine STEM

Other STEM activities your child will love:

  • Design a Boat That Floats
  • Build a Rubber Band Boat
  • Cardboard Tube Marble Run
  • DIY Geoboard 


Originally published April 22, 2014.

Filed Under: Kids Activities Tagged With: learning activities with vehicles, STEM activity, vehicle craft

Comments

  1. Emma @ P is for Preschooler says

    April 23, 2014 at 12:41 pm

    Water play is always fun! My daughter is a big fan of float-or-sink activities – she would love this one!

  2. JDaniel4's Mom says

    April 24, 2014 at 6:13 am

    This is such a fun idea! I do have lots of eggs leftover!

  3. katepickle says

    April 25, 2014 at 1:40 am

    Oh we just got some plastic eggs super cheap and my three year old will love doing this with them! Thanks so much for the inspiration!!

    • OneMommy says

      April 27, 2014 at 5:12 pm

      Plastic eggs have so many play uses I generally keep a few on hand all year… 🙂

  4. Mrs. AOK says

    May 3, 2014 at 8:51 am

    Again, you have another fun activity I’m sure littles will love. Thank you for always sharing such fun ways to learn. We appreicate you at Mommy Monday!
    XO

  5. stephanie says

    May 4, 2014 at 7:30 pm

    This is such a clever use of plastic eggs! Thanks for sharing at After School!

  6. Natasha says

    March 10, 2015 at 2:01 pm

    We enjoy float or sink activities. I’m not a preschooler but I agree it’s not a submarine unless it sinks.

Trackbacks

  1. Teacher Mama: 11 Great Ideas for Teaching Place Value ({After School Linky) | Boy Mama Teacher Mama says:
    May 4, 2014 at 10:43 pm

    […] Plastic Egg Submarines from There’s Just One Mommy […]

  2. 70+ Ways to Use Plastic Easter Eggs + Giveaway! - One Time ThroughOne Time Through says:
    March 2, 2015 at 9:02 am

    […] Fizzy Eggs Easter Baking Soda Science Experiment (left) from Little Bins for Little Hands. Plastic Egg Submarines from There’s Just One Mommy. Simple Science Colour Mixing with Plastic Eggs from Teach Me […]

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