- Vortex Valve Tornado Tube
Vortex Valve Tornado Tube
- Buy 5 for $2.40 each and save 13%
- Buy 10 for $2.20 each and save 21%
Ready for some tornado action!? This is science at its exciting best, allowing a great visual demonstration of a tornado in a bottle. The valve joins two soft drink bottles together (not included) allowing you to create a swirling, twisting tornado. Use it to study properties of air as well as the atmospheric conditions needed to create a tornado vortex. This brightly coloured valve is great for any unit on weather or natural disasters.
Ages: 4 +
What you get
Plastic tornado connector. Colours vary. Plastic bottles not included.
How does it work?
Almost fill a one litre plastic bottle with water. Screw the tornado connector onto the almost filled bottle then attach the empty bottle to the other side (so it looks like an hour glass). Turn the bottles upside down, swish the water around and, presto, a cool tornado appears. This demonstration shows that air takes up space (or volume) and exerts a pressure. It also shows that when water flows down, air must move up. Add some food colouring to the water to get a different visual effect. Lots of fun!
- Kinetic and potential energy.
- Properties of air: it takes up space and exerts pressure.
- Science of vortex energy (twisting, swirling force).
Any sized bottles will work, but one litre bottles are the best.
What are the shipping costs?
FREE Shipping is available on all orders over $120 to anywhere in Australia!
Orders under the value of $120 incur a low flat rate shipping cost of only $9.95 to anywhere in Australia.
Express, Registered and International delivery options are also available. The cost for these premium shipping services will be automatically calculated during the checkout process. Please conact us if you have any queries with these services.
In some cases we may need to apply a shipping surcharge to large or fragile items, especially to remote or non-urban locations. You will be contacted by us for confirmation if this additional charge is applicable.
How long will it take for my order to arrive?.
You should receive your order within 2 to 4 working days, although to some regional and out back areas it can take up to 2 working days longer. Orders going to WA also take a little longer, up to 6 working days.
All standard orders are shipped using Australia Post's eParcel service, so you'll be kept fully informed of the progress of your order during its journey to you. Aside from receiving regular email updates, you can enter your tracking number into Australia Post's website at any time for information about the delivery status of your order.
International delivery will take from between 1 to 4 weeks depending on the destination and potential customs clearance delays.
When will my order be shipped?
We ship every Victorian business day. Orders received and paid for by 12pm AEST time will generally be shipped the same day.
If you require your order urgently, we have a next day delivery express service available.
What locations do you ship to?
We ship to both Australian and International customers.
What shipping options are available?
The majority of orders are shipped using Australia Post's trackable eParcel service, with larger orders being sent by national courier.
We also have options for express or registered post. A number of international delivery options are also available. These can be selected during checkout.