{ "item_title" : "How Bridges Work for Kids", "item_author" : [" Khasan Laudry "], "item_description" : "Why doesn't a bridge fall down when cars and trucks drive across it? This engaging nonfiction science reader gives children a clear, confidence-building explanation of the forces that keep bridges standing - from the push and pull of everyday objects to the secret strength hidden inside a simple triangle.Discover what forces like compression and tension do inside every bridgeLearn why the arch, the triangle, and the cable are nature's strongest shapesExplore beam, suspension, and arch bridges - and what makes each one uniqueFind out what steel, concrete, and wood do differently under a heavy loadFollow a bridge from blueprint to grand opening, step by stepMeet famous bridges from around the world and the engineers who built themSee how inspectors keep bridges safe - and what bridges of the future might look likeWho this is for: Parents, teachers, and homeschoolers looking for a focused, jargon-free science reader that builds real understanding of structural engineering concepts. Ideal for curious readers in grades K-5 who ask how and why things work, not just what they are called. Pairs naturally with NGSS physical science units on forces and structures. What makes this different: While most children's engineering titles rush straight to build-it-yourself projects, this reader slows down and explains the physics behind why bridges hold up under load - giving children the conceptual foundation that makes hands-on activities actually make sense. Scroll up and add it to your cart to give a young reader the satisfying feeling of truly understanding how something works.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/3/69/083/584/3690835844_b.jpg", "price_data" : { "retail_price" : "12.99", "online_price" : "12.99", "our_price" : "12.99", "club_price" : "12.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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