Bring those groovy lava lamps back with just a few household ingredients! Perfect for your scientists-in-training.
Messy level: 2 (oil clean-up)
(5 = Super messy. 1 = Not messy at all.)
- Oil (both cooking or baby oil work)
- Food coloring
- Clear jar
1. Fill the jar about 2/3 full of oil.
2. Fill the remainder of the jar with oil.
3. Add drops of food coloring.
4. Drop in 1-2 tablets of Alka-Seltzer.
5. Watch it bubble!
Why don’t oil and water mix? Click here for an explanation.