The Water Bottle Smoke Experiment

Have you ever wondered how you can create a cool smoke effect using just a few simple materials? Well, with the water bottle smoke experiment, you can do just that! This fun and easy science experiment demonstrates the principles of air pressure and allows you to create a mini smoke tornado inside a water bottle.

Materials Needed:

• Water bottle with cap
• Matches or a lighter
• Water
• Plastic bag or small piece of paper

Instructions:

1. Fill the water bottle about one-third of the way with water.
2. Light a match or a lighter and hold it under the water bottle cap for a few seconds to heat up the air inside.
3. Quickly place the cap back on the water bottle and wait for a few seconds.
4. Next, place a plastic bag or a small piece of paper over the mouth of the water bottle and watch as a mini smoke tornado forms inside the bottle!

This experiment works because when you heat up the air inside the bottle, it expands and creates a low-pressure environment. When you quickly seal the bottle with the cap, the air inside cools down and contracts, creating a higher pressure outside. This pressure difference causes the smoke from the plastic bag or paper to be sucked into the bottle, creating the cool smoke effect.

So next time you want to impress your friends with a fun and easy science experiment, give the water bottle smoke experiment a try!