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Twig Science Third Grade Module 4: Weather Warning HQ (Textbook, Teacher Edition)
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Twig Science Sixth Grade Module 3: The Red List (Science Kit)
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Twig Science Sixth Grade Module 4: Cities of the Future (Science Kit)
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Twig Science Fourth Grade Module 5: Super Survivors (Textbook, Teacher Edition, Spanish)
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Twig Science Sixth Grade All Modules (Leveled Readers, Spanish)
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Twig Science Kindergarten Module 3: Be Prepared (Textbook, Student Edition)
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Twig Science Kindergarten Module 1: My Big Nature Adventure (Refill Kit)
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Twig Science Second Grade Module 3: Save the Island (Refill Kit)
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Twig Science Second Grade Module 4: A Garden for Life (Refill Kit)
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Twig Science Second Grade Module 1: What is a Map (Leveled Readers)
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Twig Science Second Grade Module 2: What is it Made Of? (Leveled Readers)
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Twig Science Second Grade Module 3: Incredible Erosion (Leveled Readers)
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Twig Science Second Grade Module 4: Where are the Bees? (Leveled Readers)
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Twig Science Sixth Grade Essential Kit
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Twig Science Sixth Grade Module 1: Biotech Systems Worldwide (Science Kit)
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Twig Science Sixth Grade Module 2: Destination Everywhere! (Science Kit)
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Twig Science Fourth Grade Module 3: TimeTraveling Tour Guides (Textbook, Teacher Edition, Spanish)
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Twig Science Fourth Grade Module 2: Sparks Energy Inc. (Textbook, Teacher Edition, Spanish)
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Twig Science Fourth Grade Module 1: Egg Racers (Textbook, Teacher Edition, Spanish)
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Twig Science Fourth Grade Module 3: TimeTraveling Tour Guides (Textbook, Student Edition, Spanish)
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Twig Science First Grade Module 1: Museum of Leafology (Refill Kit)
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Twig Science Fifth Grade Module 1: Matter Mysteries Hotline (Refill Kit)
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Twig Science Fifth Grade Module 2: Yellowstone Uncovered (Refill Kit)
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Twig Science Fifth Grade Module 3: H2O Response Team (Refill Kit)
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Twig Science Fifth Grade Module 4: Galactic Guidebook (Refill Kit)
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Twig Science First Grade Module 1: Museum of Leafology (Textbook, Student Edition)
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Twig Science First Grade Module 1: Museum of Leafology (Science Kit)
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Twig Science First Grade Module 2: Animal Reporters (Science Kit)
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Twig Science First Grade Module 3: Shadow Town (Science Kit)
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Twig Science First Grade Module 4: Patterns in the Sky (Science Kit)
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Twig Science Fifth Grade Module 4: Galactic Guidebook (Science Kit)
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Twig Science Third Grade Module 1: Roller Coaster Ride (Leveled Readers)
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Twig Science Sixth Grade Module 3: The Red List (Textbook, Teacher Edition, Spanish)
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Twig Science Third Grade Module 3: How To Survive an Ice Age (Textbook, Student Edition, Spanish)
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Twig Science Third Grade Module 2: Welcome to the Biodome (Textbook, Student Edition, Spanish)
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Twig Science Third Grade Module 1: The Ultimate Playground (Refill Kit)
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