We are thrilled to bring another density science experiment to you. If you liked our fireworks in water experiment, you will love making this lava lamp at home.
My daughters and I were super excited to do this experiment after watching many videos. We wanted to make our own version of it. The neighborhood chemist was short of the fizzy tablet which delayed our experiment for a while.
On a Friday, my husband brought home the long awaited Fizzy tablets. That made us all set to do the lava lamp at home.
What we need to make your own lava lamp at home?
Except the fizzy tablet, you might have all the required materials at home.
- Vegetable Oil
- Food color of your choice (red one looks better)
- Fizzy Tablets / Effervescent tablets
- Glass container
- Black light (optional – for extra visual effect)
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Let’s get into the lava lamp experiment.
DIY Homemade Lava Lamp
Step 1: Pour water in your glass container. Fill just 1/4th of your container. We used regular tea cups. You can choose the size of the container based on your preference. Longer the height of the container, better the effect.
Step 2: My younger daughter prefers to play with colors, so I let her add food colors to the water that we already added. You can choose your own color, I liked red and green as they bring out wonderful blobs.
Step 3: Just to be sure, we stirred the food color & water mixture a bit with a fork. Normally, the food colors get dissolved in water instantly. If you are using powdered food colors, this step might come handy to mix the food color well with the water.
Step 4: Next, my elder daughter poured oil on top our food color water mixture. Fill up the 3/4 of the container with oil. This is where all the action is going to happen, so it is important to have enough oil to show the blobs clearly. Also be gentle with pouring oil. Let is sit for a few minutes so that all the bubbles would settle down and your kids can clearly see the oil on top of the colored water.
Step 5: Now we are ready for action. I let my elder daughter to drop the fizzy tablets into the solution that we prepared. The tablet would slowly dive in and reach the colored water at the end. That’s when the fun started. We started seeing beautiful blobs coming out of the water and reaching the top. Seeing the action, my daughter quickly put tablets in all four mixtures that we prepared.
The kids were thrilled to see the blobs. Finally we did it. We made our own home made lava lamp.
My daughter got a good idea – what if we see this with black light? Why not? Tisha quickly brought the black light torch and switched it on. The kids started jumping on joy watching the lava lamp in UV light.
We were very happy that all turned out well.
I let the kids enjoy the show for a while. Then I started explaining the science concepts behind the blobs.