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

Earth & Space Science

Explore Smithsonian: How do Orchids Attract Pollinators?

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Life Science

STC Program: Changes Unit Kit, 2nd Edition

STC Program: Food Chemistry Unit Kit, 2nd Edition

STC Assessment Guide: Food Chemistry

The cover of the 3rd grade earth and space science teacher's guide

How Do Weather And Climate Affect Our Lives?

Earth & Space Science

STC Program: Soils Unit Kit, 2nd Edition

Organisms– Notebooking

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

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Grade 3

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Earth & Space Science

Cover of the How Can We Protect Animals When Their Habiatat Changes? Grade 3 Engineering Trainer Guide

How Can We Protect Animals When Their Habitat Changes? Grade 3 Engineering Trainer Guide

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Engineering Design

STC Program: Ecosystems Unit Kit, 3rd Edition

Explore Smithsonian: How do Scientists Sample Populations of Fish and Invertebrates Along the Shorelines?

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Grade 3

Grade 4

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Grade 6

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Life Science

Sustainability

STC Program: Rocks and Minerals Unit Kit, 2nd Edition

STC Program: Experiments with Plants Unit Kit

Bulldozing Technique for Science Class

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Earth & Space Science

STC Assessment Guide: Floating and Sinking

STC Program: Weather Unit Kit, 2nd Edition

STC Assessment Guide: Rocks and Minerals

Motion and Design– Safety with Building Pieces

Physical Science

STC Assessment Guide: Comparing and Measuring

STC Literacy Series™: Land and Water

Sound– Lesson 8: Making a Model Eardrum

Physical Science

cover of the Motion Energy Grade 4 Physical Science Trainer Guide

Motion Energy Grade 4 Physical Science Trainer Guide

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Physical Science

Ouch I Need A Bandage activity cover

Ouch! I Need a Bandage: Designing, Constructing, and Packaging a Bandage

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Engineering Design

Floating and Sinking– Weighing Floaters and Sinkers

Physical Science

Animal Studies– Materials and Organizations

Electric Circuits– Making a Filament

Physical Science

Sound — Lessons 1-4: Materials

Physical Science