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Easy Science for Kids All About Simple Machines: Types and Functions - learn fun facts about animals, the human body, our planet and much more. Fun free All About Simple Machines: Types and Functions activities!
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Simple Machine Projects
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购买 simple machine experiments for kids

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Learning Resources STEM Explorerstm Machine Makers, 60 Pieces, Ages 5+, STEM Toys, STEM Building Toys, STEM Kits, Engineering Toys, Build It Yourself
Amazon.com
184
折扣 15%
$21.99
$25.99
Learning Resources STEM Explorerstm Machine Makers, 60 Pieces, Ages 5+, STEM Toys, STEM Building Toys, STEM Kits, Engineering Toys, Build It Yourself
Amazon.com
184