What You Need:
- Plastic cup
- Food coloring
- Empty soda or water bottle
- Fill a bottle 3/4 full with vegetable oil. A clear bottle will work best.
- Fill a plastic cup with water and add a few drops of food coloring. Stir.
- Add the colored water to the bottle with the oil, and screw the lid on tight.
- Turn the bottle sideways, and watch as the color moves through the oil in funny shapes and blobs.