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STC Program: Comparing and Measuring Unit Kit, 3rd Edition

STC Program: Balancing and Weighing Unit Kit, 3rd Edition

STC Assessment Guide: Plant Growth and Development

STC Program: Changes Unit Kit, 2nd Edition

STC Literacy Series™: The Life Cycle of Butterflies

the cover of Unbalanced Forces Grade 3 Physical Science Trainer Guide

Unbalanced Forces Grade 3 Physical Science Trainer Guide

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Physical Science

Cover of the How Can We Protect Animals When Their Habiatat Changes? Grade 3 Engineering Trainer Guide

How Can We Protect Animals When Their Habitat Changes? Grade 3 Engineering Trainer Guide

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Engineering Design

Explore Smithsonian: What can we Learn from Lion Poop?

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Life Science

STC Program: The Technology of Paper Unit Kit

Life Cycles of Butterflies– Lesson 8: Observing the Crysalis - Moving the Crysalis Properly

The yellow cover of the grade 1 engineering teachers guide

How Can We Send a Message Using Sound?

Engineering Design

STC Program: Land and Water Unit Kit, 3rd Edition

Motion and Design– Lesson 1: Designing Vehicles: Getting Started

Physical Science