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And now

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here is a way to have fun 
with up and down.

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Make your own cable car.

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Oh, a cable car, is it?

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Well, 
kind of like a trolley car,

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except it doesn't run on tracks 
in the ground.

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Instead, 
it's pulled by a moving cable,

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usually across a canyon or up 
a mountain

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for your cable car.

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All you need is a toilet paper 
tube,

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a drinking straw,

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and some string.

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The first thing you do is attach 
the straw

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to the top of the toilet 
paper tube.

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I've used tape, 
but if you'd like, you can.

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You can use glue.

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Then you tie off 
one end of the string and run

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the other end of the string 
through the straw like this.

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Then tie off the other 
end of the string.

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Make sure that one end of the 
string is higher than the other.

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Then bring your cable 
car up to the top

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and let it slide 
down to the bottom.

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You know, 
you can put a small toy

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or a piece of clay inside 
like a passenger, if you'd like.

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And of course, 
you can decorate your cable car

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any way you want.

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It's fun to

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have maybe two pieces of string

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and two cable cars side by side

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and have a cable car race.

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It's a fun way to learn about up

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and down.