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Tobar Tornado Tube

by Tobar
22 customer reviews
| 4 answered questions

Currently unavailable.
We don't know when or if this item will be back in stock.
  • To fit two plastic 2 litre bottles.
  • The ingenious device demonstrates the scientific principles behind cyclones, whirlpools and hurricanes.
  • It simply connects two water-filled fizzy drinks bottles.
  • The packet gives further details of the natural forces at work.
  • 5cm.
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Education and Science Toys Education and Science Toys

Currently unavailable. We don't know when or if this item will be back in stock.

Product Information

Technical Details
Item Weight41 g
Product Dimensions18 x 11.4 x 2.8 cm
Manufacturer recommended age:12 years and up
Item model number07981
Batteries Required?No
Batteries Included?No
  
Additional Information
ASINB001K9GXHO
Best Sellers Rank 25,984 in Toys & Games (See top 100)
Shipping Weight41 g
Delivery Destinations:Visit the Delivery Destinations Help page to see where this item can be delivered.
Date First Available15 Sept. 2008
  
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Product Description

Product Description

Tobar 07981 TORNADO TUBE, The ingenious device demonstrates the scientific principles behind cyclones, whirlpools and hurricanes, It simply connects two water-filled fizzy drinks bottles, As water flows from one to the other a spectacular vortex of swirling water is created - an effect that can be further enhanced with the addition of a little food colouring or glitter, The packet gives further details of the natural forces at work.

Box Contains

1X Tobar 07981 TORNADO TUBE

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Customer Questions & Answers

Customer Reviews

3.6 out of 5 stars

Most Helpful Customer Reviews

4 of 4 people found the following review helpful By J. Noyes on 30 Oct. 2014
This device has fascinated literally hundreds of students in the schools I teach at. As such, it is a great little device for discussing pressure, ideal gasses, energy conservation, fluids and circular motion.

For bottle selection, you'll need 2 litre bottles.with the larger necks. I found these were more common in own-brand soda bottles or mineral water rather than branded soft drinks. Once you find them, put in some distilled (boiled and cooled) water and a bit of glitter and you have a long lasting desk-toy.

Someone noted that the bottles get "sucked in". This happens as the air inside the bottles warms and cools. The best thing to do is to shake the water to allow the temperature and pressure to change, then twist the bottles and let more air into the bottle.

The only real issue is that when spinning the water initially, if the user is a little over-zealous, the plastic does start to show stress fractures. Still five stars.... after all, it hasn't broken yet, despite the best efforts of the students.
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3 of 3 people found the following review helpful By Lorraine L. Nichol on 1 Feb. 2013
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The tube didn't fit the water bottles I bought and the water leaked. I plan on trying other bottles but haven't got round to it yet.
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4 of 5 people found the following review helpful By Becky on 15 Oct. 2012
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Great present for my autistic son. This is a brilliant sensory toy, its very interesting and relaxing. Great toy for a class learning about Tornado's, children and adults both love it. You can add glitter and food colouring for extra interest.
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A simple and long lasting solution compared with plastic tubing and clips. Nice vibrant colour makes it look more appealing, especially to a younger audience.

The vortex created is of good quality and lasts quite a while. I took off one star for some minor leakage I have experienced, though that can be reduced by slightly reducing the amount of water in the bottle. I have only tried this with cheap lemonade bottles, might work better with sturdier bottles!
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Does produce a great tornado for kids to watch. There is a bit of a knack to getting it going and kids do find it difficult, plus you really need 2 litre bottles otherwise the water has gone before you've seen anything and this makes it quite cumbersome. So best as a demo tool rather than as a toy.
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3 of 4 people found the following review helpful By char79 on 5 Feb. 2011
We bought this as a xmas gift for our 10 year old Autistic son who is into his Tornado's..He absolutely loves this gadget and has left it in the kitchen with the bottles attached..Great buy !!!
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3 of 4 people found the following review helpful By Km on 16 Sept. 2012
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Bought this to support a weather unit we were doing at school. Kids were fascinated by tornadoes and this provided a model that was a real talking point.
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By V. Bennion on 11 May 2014
Verified Purchase
This item is a good visual tool / learning experience for all KS1 primary school children . It would help children to understand how a tornado ' looks ' and is also a fun and interesting activity .
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