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Floating and Sinking– How is Salt Water Different from Fresh Water?

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Physical Science
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Sound– Lesson 2: How Sound Travels

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STC Literacy Series™: Changes

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STC Program: Ecosystems Unit Kit, 3rd Edition

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STC Literacy Series™: Plant Growth and Development

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

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Soils– Using Alpha Boxes

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STC Assessment Guide: Weather

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Land and Water– Literacy Integration (Sharing Predictions)

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Earth & Space Science
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Elementary Weather Lesson

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Cover fo the grade 2 physical science teacher's guide
Curriculum

How Can We Change Solids And Liquids?

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Physical Science
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Land and Water– Literacy Extension

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