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Floating and Sinking– How is Salt Water Different from Fresh Water?

Physical Science

Life Cycle of Butterflies– Literacy Integration: Nonfiction 2 - Multiple Intelligence Retell

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Cover of Smithsonian Science for the Classroom with yellow background and 12 images in circles with tiger stripes, insect, fossil, and animal crossing sign.

How Can We Protect Animals When Their Habitat Changes?

Engineering Design

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

STC Assessment Guide: Rocks and Minerals

Soils– Reading Resource Extensions

Earth & Space Science

Light Up the Cave title screen

Light Up the Cave

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Grade 1

Physical Science

The Protecting Whales teacher guide cover with a collage of images showing a mother and baby humpback whale, a whale fluke in front of a military ship, a whale fluke, and a whale fluke in front of a cargo ship.

PROTECTING WHALES

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Grade 3

Life Science

Sustainability

Sound– Lesson 8: Making a Model Eardrum

Physical Science

Styling Sun Safety activity cover

Styling Sun Safety

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Floating and Sinking– Making a Sinker Float

Physical Science

Why is My Shadow Shorter Sometimes and Longer Other Times?

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Earth & Space Science

Ouch I Need A Bandage activity cover

Ouch! I Need a Bandage: Designing, Constructing, and Packaging a Bandage

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Engineering Design

Electric Circuits– Making a Filament

Physical Science

Sound– Lesson 6: Vibrations We Can't See

Physical Science

STC Program: Changes Unit Kit, 3rd Edition

Rocks and Minerals– Creating Take Home Field Guides

Earth & Space Science

Sound– Lesson 1: Thinking about Sound

Physical Science

Animal Studies–Science Vocabulary

Ecosystems– Notebooking Strategies

Earth & Space Science

Soils– Organizing the Distribution Center

Earth & Space 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

STC Assessment Guide: Ecosystems

Smithsonian Science for the Classroom Grade 3 Life Science Cover

What Explains Similarities and Differences Between Organisms?

Explore Smithsonian: How can Scientists Track the Movement of an Invasive Species of Fish?

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Grade 3

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Life Science

Sustainability

Image of cover of "COVID-19! How Can I Protect Myself and Others?" The main image is an illustration of the coronavirus.

COVID-19! How Can I Protect Myself and Others?

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Sustainability

Explore Smithsonian: What External Adaptations do Pandas Have for Their Unique Diet?

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Grade 3

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Life Science

STC Assessment Guide: The Life Cycle of Butterflies