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STC Assessment Guide: Plant Growth and Development

STC Program: Chemical Tests Unit Kit, 3rd Edition

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

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STC Program: The Life Cycle of Butterflies Unit Kit, 3rd Edition

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

Cool to Carry

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STC Program: Solids and Liquids Unit Kit, 2nd Edition

STC Program: Comparing and Measuring, 2nd Edition

Dr. Drew, Density, & Diffusion Cover Image

Dr. Drew, Density, & Diffusion: Dr. Charles Richard Drew Giving Life Through Blood Research

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STC Program: Rocks and Minerals, 3rd Edition

STC Program: Chemical Tests Unit Kit, 2nd Edition

Ecosystems– Lesson 7: Joining Terrarium and Aquarium

Earth & Space Science

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

The cover of Protegiendo a les ballenas with 4 images of whales and ships

PROTEGIENDO A LES BALLENAS

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Grade 3

Life Science

Sustainability

STC Program: Sound Unit Kit, 3rd Edition

STC Assessment Guide: Soils

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

STC Literacy Series™: Land and Water

STC Assessment Guide: Chemical Tests

STC Assessment Guide: Animal Studies

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

Smithsonian Science for the Classroom Grade 3 Life Science Cover

What Explains Similarities and Differences Between Organisms?

STC Program: Ecosystems Unit Kit, 2nd Edition

STC Assessment Guide: Electric Circuits

STC Literacy Series™: Chemical Tests

STC Program: Electric Circuits Unit Kit, 2nd Edition

Photo of a beam of light coming from a flashlight

How Can I Win a Game of Flashlight Tag?

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Physical Science

STC Program: Microworlds Unit Kit, 2nd Edition

STC Assessment Guide: Ecosystems

the cover of Unbalanced Forces Grade 3 Physical Science Trainer Guide

Unbalanced Forces Grade 3 Physical Science Trainer Guide

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Physical Science

STC Program: The Technology of Paper Unit Kit