I bet you never thought to pair your LEGO with a cool kitchen chemical reaction science experiment? I didn’t either until my son suggested we build a LEGO volcano one morning. This is the perfect STEM experiment for hands on learning that will keep your kids busy anytime. There are tons of unique ways to use your LEGO for early childhood learning!

LEGO VOLCANO SCIENCE FOR KIDS

SUMMER SCIENCE WITH A LEGO VOLCANO!

There’s nothing better then baking soda and vinegar science experiments to explore chemical reactions! It is one of our go to classic science experiments and we have a years worth of fun ideas. This time for LEGO week, we made a LEGO volcano. We are really hitting the little LEGO bricks stage and have had fun coming up with creative ways to use Legos too! My son loves volcanos and he even suggested building this LEGO volcano. 

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Let’s get started building a LEGO volcano!

Build your own LEGO volcano! I am not a master builder and my son is 5.  We had a great time figuring out together how to make this LEGO volcano actually look like a volcano. We sorted through all our colors for black and brown bricks. We highlighted our volcano with red and orange bricks for lava. Check out a different version in our new LEGO book.

I put a test tube from our science kit in the middle of the LEGO volcano. Any narrow jar or bottle you can build around will work. Try a spice jar or mini water bottle. I showed him how we could start the bricks out wide and taper them in towards the test tube to form a volcano. We added all the brown and black pieces we could find to make our LEGO volcano look mountainous and “bumpy”. 

I left cracks or gaps around the LEGO Volcano to let lava flow through.

Fill the container inside the LEGO Volcano with baking soda. I filled this test tube about 2/3 full.

Mix vinegar with red food coloring if desired. I ended up having to use apple cider vinegar. Usually our experiments just include baking soda and vinegar. This time I squeezed a few drops of dish soap into the vinegar and gently stirred.

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The dish soap I added gives a much frothier eruption with fun bubbles too!

I gave my son a turkey baster to continue the LEGO volcano eruptions. You can deliver the vinegar  directly into the test tube this way. It makes a cool eruption that keeps on going!

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It kept on going…..

….and going! Check out those bubbles!

THIS LEGO VOLCANO WAS A REAL CROWD PLEASER!

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MORE BAKING SODA AND VINEGAR FUN TO TRY:

• Baking Soda and Vinegar Winter Activity
• Baking Soda Balloon Experiment
• Baking Soda and Vinegar Volcano
• Why Do Baking Soda and Vinegar React
• Homemade Love Potion For Kids
• How To Make Soda Bombs
• How To Make Slime With Baking Soda and Vinegar
• Fizzy Green Eggs and Ham Activity