Learn how to make a lava lamp without Alka Seltzer! It’s a fun science experiment to do with your children.
Have you ever wanted to know how to make a lava lamp without Alka Seltzer tablets? I often find myself without those on hand!
We’ve made lava lamps in the past using Alka Seltzer tablets. We actually just did it again with Louis for the first time. It was fun to see his reactions!
But, the fun didn’t last long. I ran out of Alka Seltzer fast. (I only had 2 tablets to begin with.)
It wasn’t even a day later that a member of my Facebook group, The Huddle, asked how to make a lava lamp without Alka Seltzer.
That got me searching to find an answer! I found an awesome video here with an explanation of what to do.
Then we had some fun making lava lamps again, this time, without Alka Seltzer tablets!
I also finally found some skinny glasses to use. I kept looking for bottles, but once I thought of using glasses, skinny ones were easy to find!
How to make a lava lamp without Alka Seltzer tablets:
I filled each glass about two thirds to three-fourths full with water. (Another plus of this concoction is that it’s mostly water and not nearly as much oil!)
From there, the boys took over. They chose their color of food coloring and put a couple drops in each glass. I do recommend keeping it on the lighter side to see the bubble effect better.
Next, fill the rest of the glass with oil. Leave a good half an inch at the top of the glass. We filled ours too full this first time we tried it.
And then the fun begins, and this is the secret ingredient to make a lava lamp without Alka Selzer.
Just regular table salt.
You could pour it in, or spoon it in like the boys did.
At first, it crazy bubbly as the salt finds its way to the bottom, its fast!
But then the slow part begins, the true lava lamp part, as the bubbles slowly emerge from the salt at the bottom finding their way to the top.
I actually think this way to make a lava lamp is much more accurate to the lava lamps we used to have in our bedrooms (affiliate link).
The boys truly enjoyed watching the effects! And this was all before a day at school.
They may have gotten up super early that day…
Here’s a quick video of Louis dumping in the salt to create the lava lamp effects. I wish I could show it better!