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Soda Bottle Tornado

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Quick Overview

Prepare for tornado warnings a homemade twisters turn a soda bottle into tornado alley.

Regular Price: $14.99

Special Price $8.99

Availability: In stock


How long does it take to empty a soda bottle full of water? You'll amaze your everyone and explore some of the scientific properties of air and water when you learn how to empty a full bottle of liquid using the Soda Bottle Tornado.

Here's the classic experiment: Fill one of the plastic soda bottles 2/3-full with water. Use the plastic tube to attach the second bottle. Swirl the liquid in the bottle to create a tornado-like funnel that spins in the bottle allowing the water and the air to trade spaces. Over the years many variations have been made on the classic tornado in a bottle activity, but the Soda Bottle Tornado uses the ORIGINAL Tornado Tube.

The Soda Bottle Tornado kit isn’t just a a fun activity. The kit also provides a hands-on method of teaching the difficult concept of vortexes, density, and much more. Everything you need is right in the kit! The only things you’ll need to supply are an eager mind and a bit of water. Before you know it, you’ll turn your house or classroom into a reenactment of The Wizard of Oz!

DON'T FORGET! Like with all of our Sick Science kits, you'll receive a URL link and QR code to access the experiment video, as well as an exclusive Take It Further video featuring Steve Spangler!

What's Included?

Rising Water Secret Kit
  • 1 standard Tornado Tube
  • 1 “wide” Tornado Tube
  • 4 - 1-liter bottles with caps
  • 1 bag of foam beads
  • 12 pack of Color Fizzers
  • Experiment and Take It Further videos
    (URL link and QR code)
  • Step-by-step, color activity guide

What Does It Teach?

The Sick Science!™ series covers a ton of science from a broad spectrum of fields. From optical illusions and color mixing to centripetal force and physics, you can find a use for every experiment in the series. Each Sick Science! kit provides young scientists an opportunity to explore the world around them and engage with the properties that make science so amazing.

Science Fair Connection:

While creating a swirling, twirling vortex of water in a soda bottle is fun, it isn’t a science fair project. You can create a science fair project by identifying a variable, or something that changes, in this experiment. Let’s take a look at some of the variable options that might work:


  • Compare the time it takes to empty the water from one bottle to another using the different sizes of Tornado Tubes-- one with the large opening compared to the one with the small opening. You may want to also observe and note how the vortex looks during each trial.

  • Try using different sized bottles and determine how that affects the time.

  • Determine the quickest way to transfer the water from one bottle to another. Try it out-- shake, twirl, tip, squeeze. What is the fastest method?

These are just a couple of ideas, but you aren't limited to them! Come up with different ideas of variables to test and give them a try. Remember, you can only change one variable at a time for each test. For example, if you are testing different sized bottles, make sure that all other factors in the test remain the same!

Additional Information

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Warning - Choking Hazard

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