Mystical Cloud

Making a cloud inside a bottle may help you figure out how they form outside in the sky.

Warm, moist air rises in the atmosphere, cools, and beautiful, puffy clouds can be the result. Tiny water droplets become clouds of many different kinds at many different altitudes depending on the conditions. Making your own cloud in a bottle is a popular activity in many science books but it can be a little tricky to pull off. 



Materials

1. Rubber gloves
2. Eye protection
3. A graduated cylinder
4. An opaque bottle
5. A rubber stopper or bottle cap
6. A tea bag
7. 50 ml 30% hydrogen peroxide
8. 1/4 tbsp Potassium chloride. 

Procedure

1. Put on your rubber gloves and safety goggles before you start the experiment. 
2. Pour 50 ml of 30% hydrogen peroxide into the opaque bottle and cap the bottle. 
3. Carefully open the tea bag and remove the tea leaves. 
4. Put one-quarter tbsp of potassium chloride to the tea bag and tie it close leaving enough string to overlap the lip of the bottle. 
5. When you are ready, open the bottle and slowly lower the tea bag into the hydrogen peroxide using the string. 
6. Point the mouth of the bottle in a safe direction. 
7. An exothermic reaction will take place and release oxygen. 
8. A large cloud will form and come out of the mouth of the bottle.