- 1
Fill the clear plastic soda bottle about three-fourths of the way with vegetable oil. Then, add water until the bottle is nearly filled. - 2
Place between 10 and 15 drops of food coloring into the water/oil mixture. Add more than one color for a "far out" experience. - 3
Cut the Alka-Seltzer or Airbourne tablet into roughly six to eight pieces. Then, begin dropping the pieces into the bottle and quickly screw the cap on. - 4
Turn the lights off and turn on the flashlight. Shine the beam of light through the bottle for an incredible show of multicolored globs. Put some Pink Floyd on the stereo and chill!
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