lava lamp

DIY Lava Lamp Fun

Our kids love to make DIY lava lamps! It’s a fun thing to do during the summer when it is too hot to go outside or when we are experiences an afternoon thunderstorm. Below are the directions on how we make our lava lamp fun:

lava lamp supplies


  • empty plastic bottle
  • vegetable oil
  • Alka-Seltzer
  • food coloring


Fill the empty plastic bottle about 2/3 with vegetable oil.

lava lamp oil

Add water to fill the bottle.

lava lamp water

Add several drops food coloring. Each of our kids picked a different color so we knew which lava lamp belonged to each kid.

lava lamp food coloring

Break an Alka-Seltzer into several pieces and add each piece one at a time to the oil/water mixture.

lava lamp 4 pieces alka seltzer

When the tablets hit the water they will start to fizz.

lava lamp starting to bubble

Each time you add a new piece of Alka-Seltzer it will fizz more.

lava lamp really bubbling

My boys set their lava lamps on a lighted flashlight for more lava fun. The kids really loved this and it was super simple. I hope you have fun with it!



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Rosanne is a Christian homesteading and homeschooling mom to nine kids living in rural Wyoming. She is the admin for, owner at, and an international bestselling author.

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