Creating Lava Lamps in JK

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Today in science we did a pretty amazing experiment that had us all saying WOW!!!

We started with an empty clear 1L bottle that we poured 3/4 cup of water into. For the remainder of the bottle, we filled it with vegetable oil (almost to the top). We dropped 10 drops of red food colouring into the bottle and watched the colours pass through the oil, sitting on top of the water until they eventually broke through and exploded into the water. The next step was to take an Alka Seltzer tablet, split in half, and drop it into the mixture. Once the tablet hit the water, things got WILD and CRAZY!!! Bubbles began to form all over, creating a lava lamp effect throughout the whole bottle. We even set the bottle onto a light to make it look more like a home-made lava lamp. We all went crazy as we intently watched the experiment unfold. Once the bubbles stopped, we added another tablet and it continued again. We tried adding more colours and adding more tablets and it continued to amaze us over and over!

This experiment is extremely easy to do at home. All you need is:

  • 1 Clear Plastic 1L Bottle
  • 3/4 cup of water
  • Vegetable Oil
  • Food Colouring
  • Alka Seltzer Tablets
  • Flash Light

If you do decide to try this at home, be sure to try it in a dark room as well to see the true effects of the “lava lamp”! Our classroom is always so bright because of the windows so we were not able to test this in our experiment!

Science is so cool!

~ Miss. Kim


2 thoughts on “Creating Lava Lamps in JK

  1. Archie loved this and could tell us all about it in detail, including adding the tablet that you usually have when you have a sore tummy. He loves these science experiments. Thank you.

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