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Life Cycle of Butterflies– Lesson 14: Discovering that Butterflies are Insects

How Can We Identify Materials Based on Their Properties? Grade 5 Physical Science Trainer Guide

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Physical Science

How Can We Change Solids and Liquids?

How Can We Change Solids and Liquids?

Physical Science

the yellow cover of grade 2 engineering teachers guide

How Can We Stop Soil From Washing Away?

Engineering Design

STC Literacy Series™: The Life Cycle of Butterflies

Cover fo the grade 2 physical science teacher's guide

How Can We Change Solids And Liquids?

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Physical Science

Explore Smithsonian: What Internal Adaptations do Pandas Have to Eat Bamboo?

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Life Science

Sound — Lessons 1-4: Materials

Physical Science

STC Program: Balancing and Weighing Unit Kit, 2nd Edition

STC Assessment Guide: Soils

STC Program: Microworlds Unit Kit, 2nd Edition

Be Mosquito Smart: Know the Enemy Cover Image

Be Mosquito Smart: Know the Enemy

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STC Program: Plant Growth and Development Unit Kit, 3rd Edition

Explore Smithsonian: Courtney Dressing - Smithsonian Center for Astrophysics Graduate Student

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Education

STC Program: Land and Water Unit Kit, 2nd Edition

Cover for Changing Earth

Changing Earth

Engineering Design

Life Cycle of Butterflies– Lesson 3: Learning More About Caterpillars

Rocks and Minerals– Organizing Minerals

Earth & Space Science

Floating and Sinking– Weighing Floaters and Sinkers

Physical Science

Floating and Sinking– Which Things Float? Which Things Sink?

Physical Science

STC Program: Animal Studies Unit Kit, 2nd Edition

STC Literacy Series™: Plant Growth and Development