4M Эко энергия (00-03287) Руководство по эксплуатации онлайн
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4M Эко энергия (00-03287) Руководство по эксплуатации онлайн

4M Эко энергия (00-03287) Руководство по эксплуатации онлайн
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Assembly
1. Screw a cap onto each bottle. Half fill one bottle with
water (but leave the other empty).
2. Put the connector onto the cap attached to the bottle
with water in. Put the cap of the other bottle onto it. Now
the two bottle are connected.
Operation
Tip the tube so that the bottle with water on top. Move the
tube in small circles a few times to make the water swirl
around, and stand the tube on a surface. You will see a
funnel-shaped hole form in the centre of water as the water
swirls down into the bottom bottle - it’s like a water tornado!
Repeat the experiment by turning the tube over.
How it works
The swirling mass of water that forms in the tube is known
as a vortex. Once you have started the water moving round,
the energy come from the water flowing downwards. The
vortex has a hole in the centre. As the water flows down, air
from the bottom bottle flows up to replace it. If you didn’t
spin the bottle, the water would glug downwards as the
water and air changed places.
Fun facts
• A tornado is a vortex of air. Tornadoes start when strong
currents of air are created inside giant thunderstorms.
• You can see water vortexes when you let water out of the
bath and it spins down the plug hole.
• Strong currents in rivers and at sea sometimes create
whirlpools, where water swirls downwards in a vortex.
TRICK 1: HOVER DISC
YOU’LL NEED
Assembly
1. Stick a piece of double-sided tape to the bottom of the
CD connector. Press the connector into the centre of the CD
so that the tape holds it in place.
2. Push the neck of the balloon onto the mouth piece.
Operation
Place the CD on a smooth surface. Inflate the balloon (you
might have to ask an adult to help you the first time to
do this) and then twist the neck of the balloon to stop the
air escaping. Insert the mouth piece into the CD connector,
place it on a smooth table surface and release the balloon.
Give the CD a gentle push and watch it skim along.
How it works
If you give the CD a push when the balloon is deflated, it
will only move a short way before stopping. The force that
stops it moving is friction, caused by the CD and the surface
touching. When the balloon is inflated, it forces air between
the CD and the surface. The thin film of air gets rid of nearly
all the friction, allowing the CD to move easily.
Fun facts
• The Hover Disc works like a hovercraft - a vehicle that
skims along on a cushion of air. Hovercraft can travel over
water or land.
• A hovercraft has a large fan that blows air downwards to
make an air cushion. The air is held in by a rubber skirt.
• Hover lawn mowers blow air downwards, making them
easy to push across the grass as they cut it.
TRICK 2 : TORNADO TUBE
YOU’LL NEED
From the kit: 1 cap connector, 2 bottle caps
Recycle: 2 plastic bottles (about 1 liter)
From home: Water
From the kit: 1 balloon, 1 CD connector, 1 mouth piece, double-sided adhesive tape
Recycle: 1 old CD
Carefully stretch
the balloon over
the mouth piece
on the side with
the big hole.
Double-sided
adhesive tape
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