Lava Jar Experiment
My kids LOVE experiments and this one does not disappoint. It is a lava jar.
First you need a bottle – I chose a LifeWater bottle because it is clear and plastic but a thicker plastic – not the flimsy water bottle plastic.
Fill it about one quarter of the way with water then add vegetable oil up to within one inch of the top. Add about fifteen drops of your favorite color food coloring.
Then you need your catalyst. In this case we used Alka Seltzer broken into quarters.
Then add your Alka Seltzer one quarter at a time. Sit back and watch – add more Alka Seltzer when you are ready – please make sure you keep the caps off until the Alka Seltzer stops bubbling.
When done – put the cap on and reuse when you want to by simply adding more Alka Seltzer.