A Fun & Fizzy Easter STEM Experiment for Kids
Looking for a way to add a little explosive excitement to your Easter this year? Then you’ve got to try this Easter Egg Rocket craft! It’s not just a super fun activity—it’s also a simple STEM challenge that’ll get your kids thinking like real scientists.
With just a few supplies (that you probably already have around the house), your kids can launch their very own Easter rocket into the sky—powered by a fizzy chemical reaction!
Why This Craft is So Cool
Not only is this Easter egg rocket quick and budget-friendly, but it also teaches basic principles of science: chemical reactions, pressure build-up, and motion. It’s perfect for curious kids of all ages—and a great way to use up those plastic eggs you’ve been finding all over the house!
What You’ll Need
- 1 plastic Easter egg (the kind that opens into two halves)
- 1 toilet paper tube
- ¼ tablet of Alka-Seltzer
- 1 tablespoon of water
- Tape or glue
- Optional: craft supplies to decorate your rocket (markers, stickers, paper for fins, etc.)
Step-by-Step: Make Your Easter Egg Rocket
Step 1: Decorate Your Rocket
Let your kids get creative! Use markers, stickers, or cut out some paper fins to stick onto the toilet paper roll. Just don’t add anything too heavy—your rocket needs to be lightweight to launch properly.
Step 2: Build the Rocket Base
Take the top half of your Easter egg (the narrower side) and gently fit it into the bottom of your toilet paper roll, so it sticks out a little. Tape or glue it in place securely.
This becomes the top of your rocket.
Step 3: Prepare for Launch
Now here comes the science part—adults, this step is for you!
Take the bottom half of the Easter egg and place ¼ of an Alka-Seltzer tablet inside.
Add 1 tablespoon of water to the egg.
Quickly but carefully, press the rocket (toilet paper roll with top egg half) onto the base with the fizzy mixture.
Tip: Do this quickly! The chemical reaction starts fast, and you want to capture the pressure before the fizz fades.
Step 4: BLAST OFF!
Hold the egg base steady on the ground and step back! In a few seconds, your rocket should launch into the air as the gas builds up and pops the egg apart.
Whoosh!
The Science Behind the Boom
What’s happening inside that egg? The Alka-Seltzer tablet contains citric acid and baking soda. When mixed with water, they react to create carbon dioxide gas. That gas builds up pressure inside the egg until—POP!—the rocket launches skyward.
It’s chemistry, physics, and fun all rolled into one awesome Easter experiment.
Safety First!
Always supervise young children.
Never aim your rocket at people or pets.
Make sure the rocket is pointed away from faces and breakables.
Use soft surfaces (like grass or a foam mat) for launching if indoors.
Make It a STEM Challenge!
This is a true experiment, meaning it might take a few tries to get the best result. Ask your kids to make predictions and test different variables, such as:
More or less Alka-Seltzer?
Different plastic eggs?
Varying the amount of water?
Trying without the rocket body?
Encourage them to think like mini scientists—test, observe, and adjust!
Final Thoughts
This Easter Egg Rocket is the perfect blend of fun and learning—plus, it’s a memorable way to celebrate Easter with a twist. Whether you’re homeschooling, doing weekend crafts, or just looking for something different this spring, this activity is bound to be a hit!
Happy Easter & Happy Launching!
For more Easter fun and creative craft ideas, check out the rest of our DIY holiday projects!
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Easter Paper Plate Crafts for Kids – DIY Bunny Baskets & Rocking Rabbits!
Easy and Fun Easter Crafts for Kids – DIY Potato Stamp Easter Eggs!
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