Heartbleed Security Vulnerability Fixed   •   Get 2 Free Sick Science! Kits   •   Free Experiments by Email

On Monday we learned about a vulnerability in the encryption technology that effects most of the internet, called Heartbleed. Our team grabbed their lab coats and leaped into action to patch the vulnerability on our site.

We are happy to announce SteveSpanglerScience.com is no longer vulnerable.

While we believe we have kept out all the bad guys, we want to make sure our customer's information is safe. We are requiring that all of our customers change their password for their accounts on SteveSpanglerScience.com.

To do so, click the link below and enter in the email address associated with your account. Once you receive an email to that account, follow the simple instructions to reset your password.

Reset your password - https://www.stevespanglerscience.com/customer/account/forgotpassword/

If you have any questions on password resetting, please call our Customer Service team and they will be happy to help you. 1-800-223-9080

If you have any questions about the vulnerability please email security@SteveSpangler.com

As this did effect most of the internet, we also recommend that you change your passwords on all of the websites you visit.

Thank you for being an amazing customer!

-- The SteveSpanglerScience.com Team

Questions? Give us a Call: 1-800-223-9080

Tornado Tube Classroom Kit

Turn the Tornado Tube into an unforgettable student science experience.


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Item #: W9840

Usually ships the next day.

Availability: In stock

Tornado Tube Classroom Kit

Create a tornado in a bottle! This exciting experiment is a hands-on demonstration of "VORTEX ACTION." Use this experiment to study kinetic and potential energy, as well as the atmospheric conditions needed to create a tornado vortex. This colorful plastic tube is a great introduction to any weather unit.

Turn the excitement of the Tornado Tube® into an unforgettable science experience for your students with this mega classroom kit. Don't worry about rounding up all of the supplies because this kit comes packed with everything you'll need to get the kids twisting and turning. In addition to the teacher activity guide, you'll get a copy of Steve Spangler's Taming the Tornado Tube™ book filled with 50 activities and a complete section exploring the science of tornadoes. Activities recommended for children ages 4 and up.

What's Included?
  • Six, 32 oz. bottles
  • Six, 16 oz. bottles
  • Six Tornado Tubes
  • 12 Color Fizzers coloring tablets
  • Density beads
  • Steve Spangler's Taming the Tornado Tube book
  • Teacher activity guide
  • Student discovery page
How Does It Work?

If you've ever seen a dust devil on a windy day or watched the water drain from the bathtub, you've seen a vortex. A vortex is a type of motion that causes liquids and gases to travel in spirals around a center line. A vortex is created when a rotating liquid falls through an opening. Gravity is the force that pulls the liquid into the hole and a continuous vortex develops.

Swirling the water in the bottle while pouring it out causes the formation of a vortex. The vortex looks like a tornado in the bottle. The formation of the vortex makes it easier for air to come into the bottle and allows the water to pour out faster. If you look carefully, you will be able to see the hole in the middle of the vortex that allows the air to come up inside the bottle. If you do not swirl the water and just allow it to flow out on its own, then the air and water have to essentially take turns passing through the mouth of the bottle, thus the glug-glug sound.

What Does It Teach?

Use this experiment to introduce students to kinetic energy and potential energy. Help students discover how air pressure and density work together to create an incredible force of nature. Learn about the science of vortex energy, the swirling, twisting and spiraling action that can be found everywhere in nature.

Customer Reviews

OMG - These are the BEST Review by Susan A

I originally bought these to be used in my science club... but never put them away (this was 3 years ago). I keep them on the windowsill in my classroom. Kids BEG to use them... I still have the colored water in them, etc. I've never seen anything that fascinates so much as a simple swirling bottle. I highly recommend these!
(Posted on 4/24/13)

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Warning - Choking Hazard