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Why is My Shadow Shorter Sometimes and Longer Other Times?

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Earth & Space Science

STC Assessment Guide: Sound

Explore Smithsonian: How do Scientists Track and Monitor Blue Crab Populations in the Chesapeake Bay?

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Life Science

Sustainability

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

Physical Science

Ecosystems– Material Consideration

Earth & Space Science

Land and Water– Literacy Integration (Sharing Predictions)

Earth & Space Science

Floating and Sinking– Making a Sinker Float

Physical Science

Soils– Reading Resource Extensions

Earth & Space Science

Explore Smithsonian: How do Scientists Sample Populations of Fish and Invertebrates Along the Shorelines?

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Life Science

Sustainability

STC Assessment Guide: Food Chemistry

STC Program: Sound Unit Kit, 2nd Edition

Cover of the Cool to Cary activity with three different designed cups.

Cool to Carry

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Rocks and Minerals– Lesson 8: Shining a Light on the Minerals

Earth & Space Science

Soils– Organizing the Distribution Center

Earth & Space Science

The cover of the 3rd grade earth and space science teacher's guide

How Do Weather And Climate Affect Our Lives?

Earth & Space Science

STC Assessment Guide: Magnets and Motors

Rocks and Minerals– Creating Take Home Field Guides

Earth & Space Science

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Vaccines! How can we use science to help our community make decisions about vaccines?

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Spanish

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Life Science

STC Assessment Guide: Land and Water

Title screen for the interactive e-Book, Expedition: Insects

Expedition: Insects

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Cover of Smithsonian Science for the Classroom teacher guide with a blue background and 12 images in circles with bicyclists, magnets, and a tire swing

How Can We Use Patterns To Predict Motion?

Physical Science

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

Cover for Changing Habitats

Changing Habitats

Engineering Design

STC Program: Food Chemistry Unit Kit, 2nd Edition

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

Physical Science

Sound– Lesson 8: Making a Model Eardrum

Physical Science

Life Cycle of Butterflies– Literacy Integration: Fiction

Front cover of the What Explains Similarities and Differences Between Organisms? teachers guide with flowers plants and bugs

What Explains Similarities and Differences Between Organisms?

STC Program: Sound Unit Kit, 3rd Edition

Plant Growth and Development– Planting the Seeds