Creating your Rainbow Lava Lamp in a Bottle is easy when you follow these simple steps:

1. Clean the Bottle: Ensure your bottle is clean and dry before use.
2. Fill with Water: Pour water into the bottle until it’s about one-third full.
3. Add Food Coloring: Choose your first color of food coloring and add a few drops to the water. Stir gently to mix.
4. Add Oil: Carefully pour vegetable oil into the bottle, filling it to the top. Allow the oil and water to separate; this may take a minute.
5. Layer More Colors: Repeat the food coloring steps using different colors. You can create multiple layers of different colors by waiting until each one settles before adding the next.
6. Add Decorative Items: If desired, sprinkle some glitter or small decorative items on top of the last layer.
7. Activate the Lava Effect: Break an Alka-Seltzer tablet into small pieces and drop them into the bottle. Watch as the colored water bubbles up through the oil and creates a lava-like effect!
8. Seal the Bottle: Once you’ve enjoyed the bubbling effect, securely seal the bottle withits lid.
9. Display Your Lamp: Find the perfect spot to proudly display your finished Rainbow Lava Lamp!