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

Physical Science

STC Living Materials Order Sheet, Microworlds

Soils– Reading Resource Extensions

Earth & Space Science

Motion and Design– Using Cooperation Cups

Physical Science

STC Program: Microworlds Unit Kit, 2nd Edition

Explore Smithsonian: What can we Learn from Lion Poop?

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Grade 3

Grade 4

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Life Science

Microworlds– Unit Preparation

STC Assessment Guide: Solids and Liquids

The Protecting Whales teacher guide cover with a collage of images showing a mother and baby humpback whale, a whale fluke in front of a military ship, a whale fluke, and a whale fluke in front of a cargo ship.

PROTECTING WHALES

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Grade 3

Life Science

Sustainability

STC–Kindergarten™: Exploring Forces and Motion Two-Use Unit Kit

STC Assessment Guide: Floating and Sinking

The purple cover of grade 3 earth science teachers guide

How Do Weather and Climate Affect Our Lives?

Earth & Space Science

Styling Sun Safety activity cover

Styling Sun Safety

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Grade 1

Kindergarten

Elementary Weather Lesson

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Earth & Space Science

Cover of the Grade 3 Physical Science trainer guide

How Can We Predict Patterns of Motion? Grade 3 Physical Science Trainer Guide

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Physical Science

Yellow cover of grade 3 engineering teachers guide How Can We Protect Animals When Their Habitat Changes?

How Can We Protect Animals When Their Habitat Changes?

Engineering Design

STC Program: Measuring Time Unit Kit

Sound– Lesson 10: Changing the Pitch by Changing the Tension

Physical Science

Mission to the Moon Model Cover Image

Mission to the Moon Model

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Grade 2

Grade 3

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Grade 5

STC Literacy Series™: Balancing and Weighing

STC Assessment Guide: Soils

STC Program: Ecosystems Unit Kit, 2nd Edition

Explore Smithsonian: How Does a Curator of Great Cats Monitor the Health of Individual Lions in a Pride?

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Grade 3

Grade 4

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Life Science

Sustainability

STC Assessment Guide: Microworlds

Land and Water– Literacy Extension

Earth & Space Science

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

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Grade 3

Grade 4

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Life Science

STC Program: Magnets and Motors Unit Kit

STC Literacy Series™: Organisms

Explore Smithsonian: Courtney Dressing - Smithsonian Center for Astrophysics Graduate Student

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Grade 3

Grade 4

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Grade 8

Education