Chemistry Mini Project

Do you want to play with fireworks, but cannot because they are to dangerous? Well you can make fireworks in a glass!!!

First things first, you will need:

• Oil
• Water
• Food Coloring
  
• A Tall Clear Glass
  
• Another Cup or Glass
• Fork

After you have these materials, you can start this experiment!

Here is the procedure:

1. Fill the tall glass with room temperature water.


2. Pour one-two tablespoons of oil in the other glass or cup.


3. Add a couple of drops of food coloring into the cup or glass that has the oil in it.


4. Stir the food coloring and oil for a little while, enough to break up the big droplets of food coloring into smaller ones.


5. Pour the oil and food coloring mixture into the tall glass that has water in it.
   
6. Now WATCH!!!!! You will see the food coloring droplets sink to the bottom of the glass. Each droplet will expand and this will look like FIREWORKS!!!
   

Chemistry Related:

The food coloring does not dissolve in oil, hence when it is in the oil it does not sink. As you can see the food coloring dissolves in the water. When you mix the oil and food coloring with the fork, you are breaking up the coloring droplets. Because oil is less dense then water, the oil will float on top of the water. But the food coloring will sink to the bottom of water and mix with it. The heavy food coloring droplets will sink to the bottom, while the lighter ones diffuse outward.