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

Physical Science

STC Program: Food Chemistry Unit Kit, 2nd Edition

Rocks and Minerals– Lesson 8: Shining a Light on the Minerals

Earth & Space Science

STC Program: Comparing and Measuring, 2nd Edition

Aww Snap! a Snapdragon Study title screen

Aww Snap! a Snapdragon Study

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Grade 2

Grade 3

Grade 4

Grade 5

Grade 6

Life Science

Land and Water– Lesson 2/3 The Water Cycle: Modeling Land and Water

Earth & Space Science

Cover for Changing Habitats

Changing Habitats

Engineering Design

STC Literacy Series™: Animal Studies

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

Earth & Space Science

STC Living Materials Order Sheet, Microworlds

STC Program: Motion and Design Unit Kit, 3rd Edition

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

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Grade 3

Grade 4

Grade 5

Grade 6

Grade 7

Grade 8

Life Science

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

STC Literacy Series™: Rocks and Minerals

the blue cover of grade 3 physical science teachers guide

How Can We Predict Patterns of Motion?

Physical Science

A lighthouse between two palm trees

How Would You Design a Lighthouse?

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Engineering Design

STC Program: Land and Water Unit Kit, 3rd Edition

Rocks and Minerals– Creating Take Home Field Guides

Earth & Space Science

Floating and Sinking– Making a Sinker Float

Physical Science

Teacher Tips: Weather

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Earth & Space Science

Floating and Sinking– Which Things Float? Which Things Sink?

Physical Science