Rebecca L. Johnson

5 Resources1 Award

Battle of the Dinosaur Bones: Othniel Charles Marsh vs Edward Drinker Cope

4 Resources1 Award

When Lunch Fights Back: Wickedly Clever Animal Defenses

3 Resources2 Awards

Nature's Ninja: Animals with Spectacular Skills

3 Resources1 Award

Decoding Data

2 Resources

Robert Ballard: Discovering Underwater Treasures

2 Resources

Sylvia Earle: Protecting the Seas

2 Resources

Johan Reinhard: Discovering Ancient Civilizations

2 Resources

Paul Sereno: Digging for Dinosaurs

2 Resources

Journey Into the Deep: Discovering New Ocean Creatures

by Rebecca L. Johnson and Sylvia A. Earle

2 Resources1 Award

Braving the Frozen Frontier: Women Working in Antarctica

2 Resources

Zombie Makers: True Stories of Nature's Undead

2 Resources1 Award

Masters of Disguise: Amazing Animal Tricksters

2 Resources1 Award

Crunching Numbers

1 Resource

Puzzling Out Patterns

1 Resource

Sizing Up Shapes

1 Resource

Looking at Cells

1 Resource

You and Your Genes

1 Resource

Bones and Muscles

1 Resource

Respiration and Circulation

1 Resource

Weather and Climate

1 Resource

The Magic of Light and Sound

1 Resource

Acids and Bases

1 Resource

Chemical Changes

1 Resource

Global Warming

1 Resource

Journeying Into Rain Forests

1 Resource

Learning about Ocean Animals

1 Resource

Peering Into Darkness

1 Resource

Surviving Volcanoes and Glaciers

1 Resource

Tracking Animal Migrators

1 Resource

A Walk in the Tundra

1 Resource

A Walk in the Boreal Forest

1 Resource

A Walk in the Deciduous Forest

1 Resource

A Walk in the Desert

1 Resource

A Walk in the Rain Forest

1 Resource

A Walk in the Prairie

1 Resource

A Journey Into a Wetland

1 Resource

A Journey Into an Estuary

1 Resource

A Journey Into a Lake

1 Resource

A Journey Into the Ocean

1 Resource

A Journey Into a River

1 Resource

Powerful Plant Cells

by Rebecca L. Johnson and Jack Desrocher

1 Resource

Mighty Animal Cells

by Rebecca L. Johnson and Jack Desrocher

1 Resource

Daring Cell Defenders

by Rebecca L. Johnson and Jack Desrocher

1 Resource

Understanding Global Warming

1 Resource

Your Muscular System

1 Resource

Your Digestive System

by Rebecca L. Johnson and None

1 Resource