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STC Program: Chemical Tests Unit Kit, 3rd Edition

STC Program: Animal Studies Unit Kit, 2nd Edition

Sound– Lesson 2: How Sound Travels

Physical Science

Sound– Lesson 10: Changing the Pitch by Changing the Tension

Physical Science

Explore Smithsonian: How Do Astronomers See the Invisible Parts of the Universe?

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Earth & Space Science

Floating and Sinking– Making a Sinker Float

Physical Science

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

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Earth & Space Science

Explore Smithsonian: James Smithson - The Founder of the Smithsonian

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Education

STC Assessment Guide: Magnets and Motors

STC Literacy Series™: Measuring Time, Pack of 8

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

Plant Growth and Development–Getting a Handle on Your Bee

STC Assessment Guide: Motion and Design

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

Cool to Carry

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Explore Smithsonian: Courtney Dressing - Smithsonian Center for Astrophysics Graduate Student

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Education

Ecosystems– Notebooking Strategies

Earth & Space Science

STC Program: Organisms Unit Kit, 2nd Edition

Life Cycle of Butterflies– Literacy Integration: Fiction

cover of the Earth's Systems Grade 5 Engineering Trainer Guide

Earth's Systems Grade 5 Engineering Trainer Guide

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Engineering Design

STC Program: Floating and Sinking Unit Kit, 3rd Edition

STC Literacy Series™: Sound

Rocks and Minerals– Organizing Minerals

Earth & Space Science

Animal Studies– Observing Millipedes More Closely

the cover of the Properties of Matter Grade 5 Physical Science Trainer Guide

Properties of Matter Grade 5 Physical Science Trainer Guide

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Physical Science

Title screen for the educational life science game, Morphy.

Morphy

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Life Science

STC Literacy Series™: Land and Water

STC Program: Electric Circuits Unit Kit, 3rd Edition

STC Assessment Guide: Experiments with Plants

STC Program: Sound Unit Kit, 2nd Edition

STC Program: Chemical Tests Unit Kit, 2nd Edition