4. Connect the base and the base cover, making sure the wires are kept inside, by using three screws on the underside of the base.
5. Turn the finished base upright. Push the propeller onto the motor spindle. Then, use the stickers to decorate your Tornado Maker.
Congratulations! Your Tornado Maker is ready.
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G. HOW DOES IT WORK?
If you spin a bottle of water in a circular motion, it creates a water vortex that looks like a mini tornado. The motor of your Tornado Maker works in
the same way. It turns electric energy from the batteries into physical energy and runs the propeller. The propeller swirls the water in a circular motion
and creates a vortex. The vortex forms due to centripetal force, an inward force that directs an object (such as foam balls) or fluid (such as water)
towards the centre of its circular path. Vortexes found in nature include tornadoes, hurricanes and waterspouts (a tornado that forms over water).
H. FUN FACTS
• Tornadoes are one of the most dangerous forces of nature. Extreme tornadoes can reach wind speeds of over 483 kilometres per hour (300
miles per hour), and can easily flatten houses and lift cars off the ground. Be careful!
• When warm wind from the south meets cold wind from the north, the energy of both winds creates a thunderstorm, and the turbulent air begins
to swirl – sometimes creating tornadoes!
• Tornadoes are classified using the Fujita Scale – between “F0” and “F5” based on the damage they cause. F0 tornadoes aren’t very dangerous,
and just stir up dust and break a few tree limbs. F5 tornadoes are highly destructive and potentially deadly, destroying houses, throwing around
cars and causing damage to towns and cities that can take years to repair.
• The safest place to be during a tornado is underground, which makes basements and cellars the ideal place to take shelter when the weather
forecast predicts possible tornado-producing storms.
1. Put two 1.5V AA batteries into the battery case, with the negative terminal (the flat end) touching the
springs. Install the battery cover and secure it with one screw.
2. Fill the bottle no more than 80% full with water, leaving it at least 1/5th empty (If you fill the bottle too full, the vortex will not form.) Cut off
a corner of the bag of foam balls and pour some into the water bottle.
3. Place the Tornado Maker upside down onto the mouth of the bottle and turn clockwise to screw it on. Be sure it is on tight!
4. Turn the set-up upright, with the base at the bottom. (If any water leaks from the bottle, turn it upside down, remove the Tornado Maker, dry
it and tighten the two screws attaching the bottle holder. Then reattach the Tornado Maker and turn it over again.) Turn on the Tornado Maker
using the ON/OFF switch. Watch the water swirl to become a tornado! See how it changes in shape when you tilt it!
For more fun, try bottles of different shapes and sizes (but no larger than 1.25 litre). You can also add food colouring or glitter, and shine a torch
through the bottle! Make it look like a really destructive tornado by adding some coffee grounds to the water. You can even decorate the Tornado
Maker and bottle to make it completely unique! When it is not in use, turn the whole set-up over, or take off the Tornado Maker from the bottle.
After a few times of operation, uninstall the propeller and unscrew the bottle holder, apply some cooking oil or vaseline as water-resistant oil to
the water-resistant ring for better performance.
F. TROUBLESHOOTING
If water leaks from the bottle, make sure:
• The bottle holder is secured tightly to the base cover;
• The water bottle is screwed tightly into the bottle holder;
• The red water-resistant ring is installed around the motor spindle;
• The water bottle is in good condition.
If the propeller does not run, make sure:
• The batteries are new or still usable;
• The batteries are correctly installed;
• The motor, bottle holder, and propeller are all correctly installed (refer to sections D1, D2 & D5);
• The wires are correctly connected (section D3).
If no vortex appears, make sure there is enough empty space left in the bottle. If in doubt, empty a little water from the bottle and try again.
If the vortex cannot be formed completely, try using another bottle, as the difference in shapes and sizes could affect the outcome.
If the propeller slows down after operating for some time (the water pressure can cause the motor to overload), turn over the set-up and switch it
off for 15 minutes. It is also not recommended to use the Tornado Maker for long periods of time.
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E. OPERATION
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©MARVEL ©2022 4M Industrial Development Limited. All rights reserved.
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