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4M Волшебные пузыри (00-03351) [4/9] What is the skin stretchy
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BIG BUBBLES
8. Dip the wide end of the paper wand into the bubble
solution, to a depth of about 1 cm (0.4 inches), leave it
there for a couple of seconds, and then lift it out.
9. Blow gently into the mouthpiece and watch a bubble
grow. Keep blowing gently to make the bubble bigger.
What’s the biggest bubble you can blow?
You will notice that you blow bigger bubbles with this
paper wand. Why? The paper absorbs a large amount of
bubble solution which allows the bubble to grow bigger
than the plastic wands do.
8 13
9 14
10
12
15
11
A BUNCH OF BUBBLES
13. Start as for the bubble chain above, but keep
adding bubbles with the straw around the bubble
from the paper wand.
How many bubbles can you add to the bunch before
your bubbles burst?
BUBBLE IN A BUBBLE
14. Using the paper wand, blow a bubble
about 15 cm (6 inches) across. Put your finger over
the mouthpiece to stop the air escaping from the
bubble.
15. Dip the end of the long straw into the bubble
solution. Slowly push the end of the straw through
the skin of the bubble. Blow gently into the straw to
make a new bubble inside the first bubble!
Remarks: Eventually your paper wand may become
saturated and the paper may begin to fall apart. If
this happens, simply make a new wand from two
sheets of fresh paper.
BUBBLE CHAINS
10. Using the paper wand, blow a bubble about 10 cm
(4 inches) across. Put you finger over the mouthpiece
to stop the air escaping from the bubble.
11. Dip the end of the long straw into the bubble
solution. Hold the end close to the bottom of the first
bubble and blow gently to grow a new bubble that
attaches to the first bubble and hangs below it.
12. Add more bubbles to the bottom of the chain.
How many more bubbles can you add to the chain
before your bubbles burst?
6 7
What is the skin stretchy?
The stretchiness of water is caused
by an effect called surface tension. It
happens because the tiny particles (called
molecules) that water is made from cling
to each other. The pulls the molecules
at the surface of water inwards, making
the surface like a skin.
Содержание
- A safety messages 1
- B contents 1
- Bubble activities 2
- C mix your own bubble solution 2
- What is a bubble 2
- Why are bubbles coloured 2
- D basic bubble fun 3
- Single bubbles are always a round shape called a sphere this is because the skin of a bubble always tries to shrink to the smallest surface area possible to contain the air inside it when you blow a giant bubble you can see that it slowly turns from a wobbly shape into a sphere when two bubbles stick together they keep making smallest surface area which is why you see flat walls between the bubbles 3
- Why are bubbles round 3
- What is the skin stretchy 4
- F bubble film 5
- G mega bubble 6
- I unbreakable bubble 7
- Why do bubbles burst 7
- J bubble sculpture 8
- K bubble art 8
- L troubleshooting 9
- M fun facts 9
- Questions comments 9
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