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Wednesday, June 8, 2011

Lava Lamps

  1. Fill a bottle 3/4 full with vegetable oil.  (You can use pretty much anything tall that you can see through).   We used a small glass jar.  A plastic soda or water bottle works great as well.  
  2. Fill the rest of the bottle with water.... leave a little space at the top
  3. Add 10-15 drops of food coloring. If they get squeeze happy, it's OK!  
  4. Divide the Alka-Seltzer tablet into little pieces.
  5. Drop one of the pieces of Alka-Seltzer into the oil and water mixture. The food coloring will start to dance around and it will bubble a bit. When the bubbling stops, add another piece of Alka-Seltzer.
  6. When you are done you can screw a top on and shake it around a bit.  

Adding Oil

Adding Water

Adding Food Coloring

Drops of food coloring. 

Alka Seltzer Tablets
Now sit back and watch the bubbles!! 

The children here ranged from 16 months to 4 years. 

AK and RL 


  1. I've had this on my to-do list for a while now. I know my little guy will love it. Looks so fascinating.

  2. great idea! even my big kids will love this one... thanks!

  3. Love this, it is now add to our to do list.

  4. I did this project today (and wrote a post about it, if you wanna see how it went). It was a big hit with my two and three year olds!


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