LAVA LAMP

Let's make a lava lamp!!


Materials:
A clean, clear plastic pop bottle with lid and label removed.
A funnel
Vegetable oil
Food colouring
4 alka-seltzer tablets
Water

Instructions

Put 3/4 vegetable oil into pop bottle with the help of the funnel, and then add water until the bottle is full.

Then add a few drops of food colouring.

Break all the alka-seltzer tablets into half, you should be having 8 pieces of alka-seltzer tablets.

Drop each piece into the mixture one at a time, waiting until the bubbling stops each time you drop a piece.

Now put the lid on, and put the bottle on it's side and gently lift each end of the bottle so the liquid moves back and forth.

There you go. Your lava lamp is ready!!!!