Home-made Lava Lamp

Today I will show you step-by-step how to create a home-made lava lamp.
Supplies
The supplies you will need are:
1. Empty soda or water bottle
2. Vegetable Oil
3. Food coloring of your choice
4. A tablet of Effervescent (Such as Alkaseltzer)
5. Flashlight (Optional)
Clean Your Bottle of Choice

Make sure the bottle is completely rinsed and thoroughly cleaned before starting.
Fill Bottle 3/4 Full of Vegetable Oil

Take the vegetable oil and fill the bottle approximately three quarters full, leaving room to add water to the mixture.
Fill the Remaining Space in the Bottle With Water

After adding in the vegetable oil, add in water to fill the bottle. Make sure to leave a little room for the liquid to expand once the tablets have been dropped in.
Add a Few Drops of Food Coloring

Do not add too much food coloring, two or three drops will work just fine for a 12 oz bottle.
Break Effervescent Tablet Into Small Pieces

Break the tablet down so you are able to drop it into the bottle.
Drop the Small Pieces of Efervescent Tablet Into the Bottle.

Drop the broken tablet pieces into the bottle one by one.
Wait for Tablet Pieces to Dissolve

Allow 1-2 minutes for the tablets to fully dissolve.
Put the Cap Back on the Bottle

Make sure the bottle is closed so you don't make a mess. Once the tablets have been dropped in the liquid will expand slightly. (May cause the bottle to overflow if filled too high).
Slowly Shake the Bottle to Mix

Slowly swirling the bottle will separate the oil and the water, creating bubbles that move inside the bottle.
Place Flash-Light to Provide the Glow for Your New Lava Lamp

Having a flashlight will illuminate the entire bottle creating a cool effect.