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        K-2

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        Part of The Ruff Ruffman Show
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        Build It Up, Knock It Down - Activity | The Ruff Ruffman Show

        Explore structural science and compete in a building contest where each team builds a structure without using tape and then tries to knock the other one down using only paper in this activity from The Ruff Ruffman Show. The last one standing wins!

        This resource is part of The Ruff Ruffman Show Science Collection.

        Visit PBS KIDS for more from The Ruff Ruffman Show.

        Also Available in English | Spanish
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