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

Earth & Space Science

STC Program: Sound Unit Kit, 2nd Edition

STC Program: Electric Circuits Unit Kit, 3rd Edition

Explore Smithsonian: What Internal Adaptations do Pandas Have to Eat Bamboo?

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Life Science

Motion and Design– Using Cooperation Cups

Physical Science

STC Assessment Guide: Experiments with Plants

Sound– Lesson 1: Thinking about Sound

Physical Science

Soils– Organizing the Distribution Center

Earth & Space Science

Organisms– Literacy Integration

Composite image of stars from the Chandra X-ray Telescope

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

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Earth & Space Science

Bulldozing Technique for Science Class

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Earth & Space Science

STC Program: Balancing and Weighing Unit Kit, 2nd Edition

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

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

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Earth & Space Science

Life Cycle of Butterflies– Lesson 1: Getting Ready for Caterpillars

Motion and Design– "The Explore Build" Extension Activity

Physical Science

Plant Growth and Development– Planting the Seeds

STC Program: Animal Studies Unit Kit, 3rd Edition

STC Literacy Series™: Food Chemistry

Cover of the grade 4 physical science teacher guide titled How Does Energy Move from One Object to Another?

How Does Energy Move from One Object to Another?

Physical Science

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

Soils– Reading Resource Extensions

Earth & Space Science

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

Cool to Carry

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The cover of grade 5 life science teacher guide titled How can we predict change in ecosystems?

How Can We Predict Change in Ecosystems?

STC Assessment Guide: Rocks and Minerals

Rocks and Minerals– Incorporating Literacy

Earth & Space Science