{"title":"Physical Books","description":null,"products":[{"product_id":"fairy-tale-physics-books-1-4-paperback","title":"Fairy Tale Physics: Books 1-4 [Paperback]","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAll four Fairy Tale Physics stories collected in a single illustrated paperback, for readers ages 9–12 and up.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Sample_2025_Physics_1-4.pdf?v=1782661208\" target=\"_blank\" title=\"Click here to open a PDF sample of the first story\" rel=\"noopener\"\u003e\u003cstrong\u003eRead a Sample\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis omnibus contains the first-edition versions of the stories. Please note: these are not the same as the revised second editions sold separately — in particular, the Newton's Laws story differs between editions. If you've read the second editions, this collection offers a different version of that book.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe four stories included:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eNewton's Laws: A Fairy Tale:\u003c\/strong\u003e Kip sets out to seek his fortune with little more than an apple and his wits, discovering Newton's three laws of motion along the way.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFluid Mechanics: A Fairy Tale:\u003c\/strong\u003e Queen Elise uses buoyancy, pressure, and flow — with help from Archimedes and Bernoulli — to save her kingdom.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eLight: A Fairy Tale:\u003c\/strong\u003e Prince John learns to rule with a magical candle and the guidance of light mages from history, exploring color, reflection, and refraction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGravity: A Fairy Tale:\u003c\/strong\u003e Worry sets off to rescue her sister and uncover the secrets of the Scholar Knights, with a ghostly cat named Kepler, learning about gravity, tides, and orbits.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWhat's inside each story:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEvery story includes science explanations, conceptual questions, hands-on activities, and quantitative practice problems (with answer keys) printed right in the book.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eBonus PDFs included with your order:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eYour purchase also comes with two downloadable PDF extras, delivered by a separate digital-download email (via FileFlare) after you order:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe Abigail Pendulum Adventure — a bonus story that accompanies Book 4, Gravity\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA Free Body Diagrams worksheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e This is a print-on-demand paperback. \u003cstrong\u003ePlease allow 2–3 weeks for printing and delivery.\u003c\/strong\u003e If you need your copy sooner, the paperback is also available on Amazon with faster shipping.\u003c\/p\u003e","brand":"Sarah McCarthy LLC","offers":[{"title":"Perfect Bound","offer_id":43875212230722,"sku":"9798218572259","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Shopify_FTP_Omnibus.png?v=1782509556"},{"product_id":"allora-and-the-puzzles-of-archimedes-paperback","title":"Allora and the Puzzles of Archimedes [Paperback]","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA 197-page black-and-white fantasy novel that teaches friction, levers, pulleys, and number puzzles through the adventures of Allora, a young apprentice to Wizard Leibniz who accidentally turns off friction with a magical 2,000-year-old puzzle called the Ostomachion — and then has to fix the slippery, chaotic mess she's made. Along the way she works with Newton, Archimedes himself, a Fairy Queen, and a band of trolls.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWritten by Sarah Allen, illustrated in black and white by Marie Delwart. For ages 9–12.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eShipping: This is a print-on-demand paperback. Please allow 2–3 weeks for printing and delivery.\u003c\/strong\u003e If you need it sooner, the paperback is also available on Amazon with faster shipping.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhat's inside the book\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/SAMPLE_Allora_and_the_Puzzles_of_Archimedes.pdf?v=1782319513\" target=\"_blank\" title=\"Open the Sample PDF\" rel=\"noopener\"\u003e\u003cstrong\u003eRead a Sample\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFourteen chapters of fantasy adventure (roughly 185 pages) following Allora through a world where the laws of physics have been broken and need to be put back.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\"A Note from the Librarian\" sidebars woven throughout, connecting the magic to real physics and math: static and kinetic friction (and the equation f = μN), Newton's Third Law, levers and mechanical advantage, pulleys, and a glimpse of Archimedes' famous cylinder-vs-sphere discovery.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eHands-on suggestions embedded in the story: things kids can try with a spinny chair, their palms on a desk, or a real lever.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe Ostomachion puzzle as a central plot device. (It's a real ancient puzzle attributed to Archimedes, sometimes called \"the first puzzle,\" and you can download a printable version free from my website to try yourself.)\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eIncluded with your paperback: bonus digital materials\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eYour purchase also comes with a set of downloadable PDF extras, delivered by a separate digital-download email after you order:\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eArchimedes' Puzzle Book (28 pages) — a separate illustrated puzzle book with full answer key, designed to let kids practice what Allora learns:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLever puzzles — Which Way Will the Lever Tip? · Identify the Effort, Load, and Fulcrum · A Castle Demolition Puzzle\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePulley puzzles — tension forces in single and compound pulley systems · \"Would this actually do anything???\" (figuring out which pulley contraptions provide mechanical advantage and which don't)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eA Certificate of Puzzle Mastery at the end for kids who make it through\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThree additional worksheets (with answer keys), designed as a progression from intuition to calculation to puzzle-solving:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFriction Explorer — pairs with a free interactive friction simulator on my website. Kids predict, then drag a block around, then experiment with turning static and kinetic friction on and off to see what really happens. Conceptual, no calculations.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCalculating Friction — works through the friction equation f = μN with characters from the book, including multi-step problems where the normal force changes (a hawk lifting a chair, pushing down on a broom).\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFlower Garden Riddles — integer puzzles based on Archimedes' Cattle of the Sun problem, introducing primes, squares, triangular numbers, and Diophantine equations through trolls, fairies, dwarves, and dragons. Includes the original Greek riddle as a bonus at the back for the very ambitious.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eTo summarize, here's everything you'll get\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe paperback novel (197 pages, black-and-white illustrations), shipped to you\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePDF of Archimedes' Puzzle Book, with answer key\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePDFs of the Friction Explorer, Calculating Friction, and Flower Garden Riddles worksheets, with answer keys\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eThe digital extras arrive by email after purchase; the paperback arrives in 2–3 weeks\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePart of the Fairy Tale Physics series\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEach book in the series is self-contained, so you can start anywhere. Allora's story stands on its own, though sharp-eyed readers may notice familiar faces (Newton and Leibniz, for instance, both make appearances).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAbout the author\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSarah Allen tutored math and physics for twenty years before becoming a full-time fantasy writer. She has a physics degree from the University of Washington (graduated with college and departmental honors) and a master's in Cognition and Learning from Columbia. Her goal is to write the sort of physics books she would have wanted as a kid.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAges 9–12 · 197-page novel · 28-page puzzle book · 3 worksheets · Black-and-white illustrations\u003c\/p\u003e","brand":"Sarah McCarthy LLC","offers":[{"title":"Perfect Bound","offer_id":43888223977538,"sku":"9798950539015","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Shopify_FTP_Omnibus_and_Allora.png?v=1783378803"},{"product_id":"physics-fables-paperback","title":"Physics Fables [Paperback]","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFive stories, five corners of physics — from the strangeness of special relativity to the math used by bees. In Physics Fables, a tortoise named Eloise races a literal photon and discovers that light breaks the rules of relative velocity; a girl named Sakura investigates why her village's oily sea has stopped giving up its eels and ends up conversing with a mermaid about density and buoyancy; a small bee named Clemmm (the end of her name sounds like humming) invents a coordinate system to share the location of a flower meadow with her hive; a butterfly named Arnold attends what may be the last great Conclave of all animals, seeing in ultraviolet and polarized light the rest of them cannot; and a lone adventurer named Zara carries a magnetized scepter across dragon-filled lands on a planet where gravity is gentler than our own. Each story is self-contained, and each one uses real physics and connects it to our everyday life.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Sakura_and_the_Many-Layered_Sea_Paperback.pdf?v=1782319909\" target=\"_blank\" title=\"Open a sample PDF story\" rel=\"noopener\"\u003e\u003cstrong\u003eRead a Sample Story\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWritten by Sarah Allen. Each story is illustrated by a different artist: Vladimir Djekic, Donna Schafer, Nathan Ranieri Moncao, and Marie Delwart. Formatted by Sue Balcer. Suitable for ages 9–12, though younger readers who love stories will find plenty to enjoy alongside a grown-up.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eShipping: This is a print-on-demand paperback. Please allow 2–3 weeks for printing and delivery. \u003c\/strong\u003eIf you need it sooner, the paperback is also available on Amazon with faster shipping.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhat's inside the book\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFive complete stories totaling 116 pages\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eScience Notes woven throughout each story — sidebars explaining the physics concepts as they appear in the narrative (relative velocity and the speed of light, density and buoyancy, polar coordinates, animal color vision and perception, magnetism)\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eScience Activities at the end of each story — hands-on experiments and group activities, including a three-person relative velocity experiment, a message-in-a-bottle buoyancy challenge, a full Polar Coordinates classroom activity with materials list and instructions, a bubble thin-film optics observation, and a magnet interaction experiment\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAn \"About this Book\" introduction from the author explaining how to read the collection — stories first, notes when curious, activities whenever you like\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePart of the Fairy Tale Physics series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEach book in the Fairy Tale Physics series is fully self-contained and can be read in any order. Physics Fables is a short-story collection, making it a natural entry point for readers who want to sample the series or who prefer variety over a single extended narrative. Characters and creatures from across the series make quiet appearances — keep an eye out.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eAbout the author\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSarah Allen tutored math and physics for twenty years before becoming a full-time fantasy writer. She has a physics degree from the University of Washington (graduated with college and departmental honors) and a master's in Cognition and Learning from Columbia. Her goal is to write the sort of physics books she would have wanted as a kid.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAges 9–12 · 116 pages · Color Illustrations · Five stories\u003c\/p\u003e","brand":"Sarah McCarthy LLC","offers":[{"title":"Perfect Bound","offer_id":43888243048514,"sku":"9798950539022","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Shopify_FTP_Omnibus_and_Allora_1.png?v=1783558067"},{"product_id":"newtons-laws-a-fairy-tale-paperback","title":"Newton's Laws: A Fairy Tale [Paperback]","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA 123-page illustrated fairy tale that teaches Newton's three laws of motion through the adventures of Kip, a curious boy with nothing but an apple to his name, and Newton, an eccentric wizard who keeps figuring out how the universe works by accident. Along with rival wizard Leibniz, the contested heir Prince Eric, and a guard captain very devoted to him, they discover the laws of motion together — and (mostly) save the kingdom.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWritten by Sarah Allen, illustrated in full color by Sheila Stephanie Elizan. For ages 9–12.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eShipping: This is a print-on-demand paperback. Please allow 2–3 weeks for printing and delivery.\u003c\/strong\u003e If you need it sooner, the paperback is also available on Amazon with faster shipping.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eNote: This is the current edition of Newton's Laws. It differs from the first-edition version included in the Fairy Tale Physics Books 1–4 omnibus. (Same story, but more illustrations, and the practice problems are integrated into stories now, too.)\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhat's inside the book\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Newton_s_Laws_Sample.pdf?v=1782319662\" target=\"_blank\" title=\"Click here to Open a Sample PDF\" rel=\"noopener\"\u003e\u003cstrong\u003eRead a Sample\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFour chapters of fairy tale (roughly the first 75 pages), where Kip and Newton discover the three laws of motion in the wild — by tumbling over cliffs, picking up rocks on the road, arguing with rival wizard Leibniz, and climbing a tower that won't stop swaying in the wind.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\"A Note from the Librarian\" sidebars throughout the story that connect each plot moment to the real physics: Newton's three laws, friction, the normal force, weight vs. mass, velocity vs. acceleration, with brief tastes of entropy and calculus.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\"Try to Break the Law!\" hands-on experiments woven into the text — things kids can try with a rolling chair, a wall, a friend, a sock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFive practice sections in the back:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eA worked free-body-diagram example told as a story (Newton's tippy tower)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFive free-body-diagram problems to draw (unicorn, troll, pirate, dragon, dragon-in-dive)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eF=ma setup practice with friction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eA creative writing prompt — \"you've been appointed the official bard of the land of fairy tale physics\" — write your own physics story about Newton's Second Law\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRiddles in the Woods with the Trickster Fairy, on identifying third-law force pairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA vocabulary glossary at the end covering force, perpendicular, normal, weight, mass, velocity, and acceleration in plain language.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eIncluded with your paperback: \u003c\/strong\u003ebonus Free Body Diagrams Worksheet (with answer key)\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eYour purchase also comes with a separate illustrated worksheet, delivered by a digital-download email after you order (so your reader can dig in while the book is on its way). It's designed around the most common misconceptions kids run into with free body diagrams. 20 problems total:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e15 qualitative scenarios (a book on a table, a chandelier, a hockey puck sliding, a sailboat speeding up, a squirrel on a branch, sliding across the floor in your socks…)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e5 \"make up a scenario to fit this diagram\" problems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eA full illustrated answer key with every force labeled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eGreat for reinforcing what the book teaches, or as a standalone for any kid learning Newton's laws.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eA note on answers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe book itself doesn't have a traditional answer key — the practice problems are resolved within the story. For example, the Trickster Fairy walks you through whether each force pair is a third-law pair and why. The bonus worksheet does have a full separate answer key.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eTo summarize, here's everything you'll get\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe paperback book (123 pages, full-color illustrations), shipped to you\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePDF of the Free Body Diagrams Worksheet, with answer key\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe worksheet arrives by email after purchase; the paperback arrives in 2–3 weeks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAbout the author\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSarah Allen tutored math and physics for twenty years before becoming a full-time fantasy writer. She has a physics degree from the University of Washington (graduated with college and departmental honors) and a master's in Cognition and Learning from Columbia. Her goal is to write the sort of physics books she would have wanted as a kid.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAges 9–12 · 123 pages · Illustrated in color\u003c\/p\u003e","brand":"Sarah McCarthy LLC","offers":[{"title":"Perfect Bound","offer_id":43888338042946,"sku":"9798950539008","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Shopify_FTP_Omnibus_and_Allora_2.png?v=1783558207"},{"product_id":"gravity-a-fairy-tale","title":"Gravity: A Fairy Tale","description":"\u003cp\u003e\u003cstrong\u003eWhat would happen if you jumped into a tunnel that went straight through the center of the Earth? \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat's exactly what Worry is about to find out! Her sister Hope has been kidnapped by a dragon and Worry is determined to bring her home. To do so, she'll travel from the center of her planet to the surface of a nearby moon, learning about gravity with help from the echoes of Aristotle, Kepler, Galileo, Newton, and Einstein.\u003cbr\u003e\u003cbr\u003e\u003cem\u003eGravity: A Fairy Tale\u003c\/em\u003e is part of the Fairy Tale Physics series. Each book begins with a story and includes explanations of the real-world physics for anyone who’s curious.\u003cbr\u003e\u003cbr\u003eWritten by a 20-year physics educator with degrees in physics and cognitive psychology.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Sample_Gravity_Fairy_Tale_Paperback.pdf?v=1786896539\"\u003eRead a Sample\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"box-sizing: border-box; color: rgba(0, 0, 0, 0.81); font-family: Inter, sans-serif; font-size: 14px; background-color: #ffffff;\"\u003eShipping: This is a print-on-demand paperback. Please allow 2–3 weeks for printing and delivery.\u003c\/strong\u003e\u003cspan style=\"color: rgba(0, 0, 0, 0.81); font-family: Inter, sans-serif; font-size: 14px; background-color: #ffffff;\"\u003e If you need it sooner, the paperback is also available on Amazon with faster shipping.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eTopics covered:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNewton’s Law of Universal Gravitation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCircles and Ellipses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow Orbits Work\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTides and Planetary Motion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePendulums\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLogical Reasoning and Syllogisms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA Short History of Gravity, from Aristotle to Einstein\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat's included:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: A Fairy Tale Paperback\u003c\/li\u003e\n\u003cli\u003ePDF version\u003c\/li\u003e\n\u003cli\u003eeBook version\u003c\/li\u003e\n\u003cli\u003eA PDF bonus story with the same characters that goes into the math of pendulum calculations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sarah McCarthy LLC","offers":[{"title":"Perfect Bound","offer_id":44535315988546,"sku":"9798950539053","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8395\/8338\/files\/Shopify_FTP_Omnibus_and_Allora_4.png?v=1785197877"}],"url":"https:\/\/shop.mathwithsarah.com\/collections\/physical-books.oembed","provider":"Math with Sarah","version":"1.0","type":"link"}