Tornado Tube
Create a spinning vortex and explore real-world weather science with the Tornado Tube, a hands-on STEM tool that transforms two standard 2-liter bottles into a powerful tornado demonstration.
• Demonstrates vortex motion and rotational flow through visual experimentation
• Helps students explore weather science, fluid dynamics, and cause-and-effect
• Easy to use—connects two standard 2-liter soda bottles (not included)
• Encourages prediction, observation, and scientific discussion
• Ideal for classroom demonstrations, science centers, and STEM labs
• Durable design for repeated use in educational settings
• Includes complete instructions for setup and experiments
To use, simply attach the Tornado Tube between two filled 2-liter bottles, flip, and swirl to create a fast-spinning water vortex that mimics the motion of a real tornado. Students can experiment with speed, direction, and water levels to observe how vortices form and change.
Perfect for upper elementary classrooms, homeschool science, and hands-on learning environments. Recommended for ages 8+—an engaging, low-cost way to bring weather and physics concepts to life.
- Ages 8 yrs. +
- 2-liter bottles not included
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What Makes Constructive Playthings Better?
Experienced
For the past 70 years, each product is selected based on our knowledge of early childhood education combined with research insights, observations of young children in the classroom, and feedback from our customers
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Our full-service team is available to take you through the entire purchasing process. We have been supplying early-childhood educators with quality products for over 70 years! Connect with us and we can help you with planning, budgeting, designing, and ordering.
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We stand behind every one of our products and are confident they will become high-caliber additions to any classroom or home. We are committed to offering sustainable solutions for educators. In addition to constantly seeking out new ways to create products that will encourage the longevity of our planet, we have taken steps to build an eco-friendly workplace.
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We are dedicated to staying up to date and providing early childhood educators with the resources they need. We update our classroom layouts and guides as new criteria and product offerings evolve, and ensure all materials within these guides meet NAEYC, ITERS-3, ECERS-3, and Head Start standards.
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