This epic Exploding Watermelon activity is a fun, edible science experiment that helps kids of all ages learn about potential and kinetic energy. This summer activity for kids will allow kids to learn how many rubber bands to explode a watermelon! Try this watermelon rubber band with toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, and 5th grade students. You must add this to your summer bucket list!
Looking for really fun summer activities that sneaks in a hands on learning activity? You will love this EPIC Exploding Watermelon! This watermelon rubber band is a summer experiment for toddlers, preschoolers, kindergartners, grade 1, grade 2, grade 3, grade 4, grade 5, and grade 6 students. Whether you are a parent, teacher, or homeschooler – you won’t want to miss this exploding watermelon with rubber bands. We just love easy science experiment for kids!
Potential and Kinetic Energy
The concept of potential and kinetic energy might seem hard for kids to grasp, but this simple science experiment for kids will not only help them understand, but remember!
Potential energy is anything that has the possibility of movement. stored energy an object has because of its position or state. A bicycle on top of a hill, a book held over your head, and a stretched out rubber band all have potential energy.
Kinetic Energy is anything that has movement. So wind blowing leaves, a soft ball that has been thrown, and an object falling all have kinetic energy.
So in other words, a stretched out rubberband has potential energy, but when you let go and it retracts the movement turns into kinetic energy.
Exploding Watermelon Experiment
For this watermelon rubber band experiment you will need the following supplies:
- medium watermelon
- 400-600 rubberbands (how many depends on the size of watermelon you get)
- 2 people to put the rubberbands on
- bowl (optional, but super helpful in keeping the watermelon stationary)
- gloves (optional, in case you break rubbebands to protect your hands)
- goggles (optional – to avoid getting watermelon pieces in your eyes)
- apron (optional – to keep your clothes watermelon free)
How Many Rubber Bands to Explode a Watermelon
In this exploding watermelon science experiment you will observe the potential energy of a stretched out rubberband convert to kinetic energy as the rubberband retracts back to its original size. This movement from potential to kinetic energy will in essence cut the watermelon in half and make the fruit appear to explode.
A watermelon isn’t pliable, the rind gives this summer fruit a solid structure. You can’t deform the melon. If you remove the rubber bands, it will return to it’s original form. The rubber bands slowly break the structure of the rind until it can no longer hold together. The rubber bands apply force to the rind forcing it’s shape to change.
Watermelon Rubber Band Experiment
I highly suggest doing this watermelon challenge outside as it can make a mess as the name exploding watermelon suggests! Then again, that’s part of the reason it makes a great activity to add to your kids’ summer bucket list.
It is easiest to have 2-3 people to put the rubberbands on the watermelon. This way you gently slide it over the fruit to the midsection. Keep going, and going, and going!
Watermelon Rubber Band
The more watermelon rubber bands you put on, the more potential energy the watermelon gains in the displacement of its shape and content. If you only put 100 rubber bands on it won’t make the rubberband cut in half, but it may make it eventually create a seam in the fruit to release the tension.
You will need at least 400 rubber bands to complete this watermelon explosion experiment.
watermelon rubber band challenge
If you are observant, when you are getting close to exploding the watermelon, you will notice the fruit start to change shape slightly. Our fruit started getting a smaller waist, bubbles came out the top, and we could hear a slight hissing sound.
When those things start to happen, GET READY! It will pop within a couple watermelon rubber band!
Even though we knew it was coming from the bubbling and bulging, it was still a shock and SOOOOO cool! The watermelon popped up at least 5 feet in the air and made a great splatter! The sequels of delight and exclamations that science was so cool made my day!
This edible science experiment does take some time to get all the rubberbands on, but there are no fancy supplies and it can be done by kids of all ages. You’ve GOT to try this!
Although this summer science did make a big impression, it wasn’t a ridiculously big mess. All the watermelon pieces, rind, and rubber band landed within a 2 foot radius of where it started. It was easy to pick up the pieces and let the upcoming rain clean off the surfaces for us.
Exploding Watermelon Experiment
And as far as the clean-up of the watermelon, but kids took care of that! The pieces that flew were the perfect size for eating.
And my little ones grabbed a spoon and took care of the half that stayed put on the table.
Exploding watermelon with rubber bands
Are you wondering how many rubber bands to break a watermelon? It was interesting, after we got over the excitement of the fruit explosion, we couldn’t find the rubber bands anywhere around the explosion. We kept looking and finally found all the 400+ rubber bands. We were shocked to see all of them had stayed together in a big ball. How cool, is that!
Looking for more watermelon activity ideas or two to make a week long watermelon theme or dive into the letter w is for watermelon? You will love these fun activities and free printables:
- Count playdough “seeds” with these adorable, Free Watermelon Printables
- Rows and rows of Watermelon Math Number Lines
- Fun-to-play with Fluffy Slime Watermelon Activities for Preschoolers
- Cute Suncatcher Watermelon Craft
- W is for Watermelon HandArt Project
- Scented, Watermelon Kool Aid Play Dough Recipe for summer
- Watermelon Slime Activity for Kids
- Exploding Watermelon Science Experiment
- Volcano Watermelon Experiment – Summer Activity for Preschoolers
- Work on Counting with these Watermelon worksheet
- Hands-on Alphabet practice with this Watermelon Activity
- Watermelon All About Me Poster
- Find the Letter Watermelon Worksheets
- Watermelon Printable Counting Clip Cards
- Free Watermelon seed counting Activity with printable
- Hands-on Watermelon Activity adding seeds with kids fingerprints
- Watermelon Activities for Preschoolers
- Addition within 10 Watermelon Printable Math Activity
- Number Puzzles Watermelon Activities for Preschoolers
- Ryming Words Watermelon Activity
- Watermelon Letter Matching Game
- Fact Family Watermelon Worksheets
- Watermelon Life Cycle Spinner
- Squish Bag Watermelon Activities for Preschoolers
- Plus don’t miss these Watermelon Activities
Looking for more outdoor activities for kids and things to do in the summer? Your toddler, preschool, pre k, kindergarten, and elementary age kids will love these fun ideas to keep them busy all summer long:
- Marshmallow Shooters – go over 30 feet!
- 2 ingredient Easy Slime Recipe
- How to Make a Lava Lamp – it’s super EASY!
- Kids will no nuts over this simple Pop Rock Experiment
- Handprint Strawberry Craft for Summer
- Grow Your Own Crystals
- Water Balloon Experiment – exploring densit with an EPIC summer activity for kids
- Amazing Bubble Painting
- Mind Blowing Color Changing Playdough
Summer Activities for Kids
- Egg Shell DIY Chia Pet Craft – Silly Spring / Summer Activities for Kids
- Grass Head Craft for Kids
- Blow GIANT bubbles with this Homemade Bubble Solution
- Outrageously FUN Bubble Painting
- Bleeding Tissue Paper Fireworks Craft
- Beautiful Flower Suncatcher Craft
- Pretty, fun-to-make Stained Glass Pasta Art
- 30 Fun June Crafts for Kids
- Must try Lego Zipline
- Exploding Watermelon Science Experiment
- Homemade Chalk Recipe
- 75+ FUN Scavenger Hunts for Kids
- Don’t miss this really cool and EASY Lemon Volcano Science Project
- Find activities by month with our June Crafts for kids or our June Activities for Kids!
Fun Summer Activities for Kids
- Ice Cream Edible Playdough
- Whip up a batch of Kool Aid Playdough – it smells amazing!
- I Spy DIY Bottles are quick, easy and FUN!
- Amazing Tin Foil Art Project for Kids of all Ages
- Vinegar and Baking Soda Rocket Science Experiment for Kids
- Summer Bucket List Printable with Ice Cream Theme
- How to Make Ice Cream in a Bag
- Ice Cream Playdough Patterns
- Head to the zoo with this FREE Zoo Scavenger Hunt – lots of choices for all ages!
- Make your favorite animal with one of these 100 animal crafts
- Try one of these fun Animal I Spy Printables
- Epic Squirt Gun Painting
- Play with your food using this goldfish counting activity
- After seeing the frogs at the pond, grab this free life cycle of a frog worksheet
- Avoid the summer learning loss by practicing math with these crack the code worksheets
- First Day of Summer Craft
- Create this gorgeous stained glass art for kids
- 107 Epic Summer Activities for Kids