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Explore Smithsonian: How Are Optical Instruments Tested Before Space Flight?

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Earth & Space Science

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

What is Our Evidence That We Live On A Changing Earth?

What Is Our Evidence That We Live on a Changing Earth?

Physical Science

Teacher Tips: Weather

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Earth & Space Science

Sound– Lesson 8: Making a Model Eardrum

Physical Science

cover of the Motion Energy Grade 4 Physical Science Trainer Guide

Motion Energy Grade 4 Physical Science Trainer Guide

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Physical Science

How Can Animals Use their Senses to Communicate

How Can Animals Use their Senses to Communicate?

STC Literacy Series™: Chemical Tests

Organisms– Literacy Integration

STC Program: Soils Unit Kit, 2nd Edition

STC Literacy Series™: Plant Growth and Development

STC Program: Microworlds Two-Use Unit Kit, 3rd Edition

STC Literacy Series™: Ecosystems

Rocks and Minerals– Organizing Minerals

Earth & Space Science

Plant Growth and Development– Planting the Seeds

Rocks and Minerals– Lesson 2: Observing Rocks- How are They the Same and Different?

Earth & Space Science

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

Expedition: Insects

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yellow cover of How Can We Provide Energy to People’s Homes?

How Can We Provide Energy to People’s Homes?

Engineering Design

How Does Motion Energy Change in a Collision?

Physical Science

Animal Studies– Materials Management

Soils– Lesson 6: How Quickly Do Soils Settle in Water?

Earth & Space Science

Land and Water– Lesson 2/3 The Water Cycle: Modeling Land and Water

Earth & Space Science

STC Program: Electric Circuits Unit Kit, 3rd Edition

STC Program: Floating and Sinking Unit Kit, 2nd Edition

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

STC Assessment Guide: Food Chemistry

STC Program: The Technology of Paper Unit Kit

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

STC Assessment Guide: Floating and Sinking

Explore Smithsonian: How Does a Curator of Great Cats Monitor the Health of Individual Lions in a Pride?

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Life Science

Sustainability