Thames & Kosmos Kids First: The Human Body (Version 2) handleiding

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Thames & Kosmos

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Handleiding

DID YOU KNOW?

You’re a regular gymnast! No matter how you move,

you always adjust your body so that it’s balanced.

That happens all by itself, without having to think

about it at all. So that means that when you bend

forward, your bottom has to move backward —

otherwise your upper body won’t be

counterbalanced. In this experiment, though, the

wall is in the way! Your bottom can’t move to the

rear. That is why you’ll lose your balance, and you

won’t succeed in picking up the feather.

WHAT’S HAPPENING

Place the feather on the floor, bend over, and pick it up. It’s easy, right?

Then position yourself with your back against the wall and try it again —

be sure to keep your heels against the wall the whole time. Now, all of a

sudden, it won’t work at all. To pick up the feather, you have to take a

step forward. Why does that happen?

Don’t Fall!

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