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How Can We Predict Change in Ecosystems?

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

STC Program: Plant Growth and Development Unit Kit, 3rd Edition

Sound– Lesson 6: Vibrations We Can't See

Physical Science

Which Force Is With You? A Motion and Design Lesson Cover Image

Which Force Is With You? A Motion and Design Lesson

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STC Program: Measuring Time Unit Kit

STC Literacy Series™: Magnets and Motors, Pack of 8

STC Program: Soils Unit Kit, 2nd Edition

STC Program: Animal Studies Unit Kit, 2nd Edition

STC Literacy Series™: Motion and Design

Cover of the Keep it Balanced activity with an illustration of the endocrine system and a hand holding cards that say blood sugar increases and blood sugar decreases

Keep it Balanced

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Life Science

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

Earth & Space Science

Cover for Water Works

Water Works

Engineering Design

STC Assessment Guide: Comparing and Measuring

How Can We Identify Materials Based On Their Properties?

How Can We Identify Materials Based on Their Properties?

Physical Science

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

STC Program: Comparing and Measuring, 2nd Edition

A blue tone image of the Smithsonian castle with text that says Stories of women in STEM at the Smithsonian

Stories of Women in STEM at the Smithsonian

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Education

STC Assessment Guide: Microworlds

Sound — Lessons 1-4: Materials

Physical Science

STC Program: Rocks and Minerals, 3rd Edition

Bulldozing Technique for Science Class

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Earth & Space Science

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

Earth & Space Science

Plant Growth and Development–Getting a Handle on Your Bee

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

Soils– Using Alpha Boxes

Earth & Space Science

STC Program: Chemical Tests Unit Kit, 2nd Edition

Animal Studies– Observing Millipedes More Closely

Cover of the Grade 5 Earth science teacher guide cover

How Can We Use the Sky to Navigate?

Earth & Space Science

Floating and Sinking– Weighing Floaters and Sinkers

Physical Science