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        Part of Fetch!
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        Fetch! | Set It Straight

        Tinker with a tabletop seesaw, in this activity from Fetch! . With balancing, it's not just weight that matters. Position matters, too. Weight and distance keep your seesaw balanced. Weight is how heavy objects are on each side of the fulcrum. Distance is how far each weight is from the fulcrum. Together, weight and distance create leverage. That's why, with your seesaw, you can balance a stack of pennies close to the fulcrum on one side with just one penny far from the fulcrum on the other side. Even though the single penny has only a little weight, it's far from the fulcrum, giving it a large amount of leverage.

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