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STC Program: The Life Cycle of Butterflies Unit Kit, 2nd Edition

STC Secondary: Exploring Plate Tectonics

Earth & Space Science

STC Program: Chemical Tests Unit Kit, 3rd Edition

STC Literacy Series™: Sound

Land and Water– Literacy Extension

Earth & Space Science

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

Cool to Carry

This is a free resource

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Grade 3

Grade 4

Grade 5

Cover of COVID-19! How Can I Protect Myself and Others? NGSS-Aligned Teacher Companion Guide

COVID-19! How Can I Protect Myself and Others? NGSS-Aligned Teacher Companion Guide

This is a free resource

Floating and Sinking– Investigating Boat Designs

Physical Science

Floating and Sinking– Weighing Floaters and Sinkers

Physical Science

the cover of Unbalanced Forces Grade 3 Physical Science Trainer Guide

Unbalanced Forces Grade 3 Physical Science Trainer Guide

This is a free resource

Physical Science

STC Program: Motion and Design Unit Kit, 3rd Edition

Why is My Shadow Shorter Sometimes and Longer Other Times?

This is a free resource

Earth & Space Science

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

STC Program: Sound Unit Kit, 2nd Edition

Floating and Sinking– Making a Sinker Float

Physical Science

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

Motion and Design– "The Explore Build" Extension Activity

Physical Science

STC Program: Animal Studies Unit Kit, 2nd Edition

STC Program: Food Chemistry Unit Kit, 3rd Edition

the blue cover of grade 3 physical science teachers guide

How Can We Predict Patterns of Motion?

Physical Science

STC Program: Electric Circuits Unit Kit, 2nd Edition

STC Assessment Guide: Chemical Tests

Rocks and Minerals– Incorporating Literacy

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?

This is a free resource

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Grade 3

Grade 4

Grade 5

Grade 6

Grade 7

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High School

Sustainability

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

Yellow cover of grade 3 engineering teachers guide How Can We Protect Animals When Their Habitat Changes?

How Can We Protect Animals When Their Habitat Changes?

Engineering Design

STC Literacy Series™: Ecosystems

Explore Smithsonian: How Can a Greenhouse Use Technology to Meet the Needs of Different Types of Plants?

This is a free resource

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Grade 3

Grade 4

Grade 5

Grade 6

Grade 7

Grade 8

Life Science

STC Program: Ecosystems Unit Kit, 3rd Edition

Rocks and Minerals– Organizing Minerals

Earth & Space Science