My latest book is Extreme Longevity: Discovering Earth’s Oldest Organisms, published by Lerner Publishing, August 2018. It’s a fascinating look at some of the longest living plants and animals on the planet, from the possibly 500+ year old Greenland shark to the ancient root system of Pando, a colony of quaking aspen trees in Utah. Kirkus Reviews says its “An intriguing look at some of world’s oldest organisms and the scientists who study them.”


Nature’s Superheroes (5-book series)

Who Invented the Airplane?

Who Invented the Television?

Who Invented the Movie Camera?

Create Your Own Blog

Make and Upload Your Own Videos

States of Matter Investigations, Energy Investigations, Magnetism Investigations, Forces and Motion Investigations, and Sound and Light Waves Investigations

Mysterious UFOs and Aliens and Spine-Tingling Urban Legends

Mysteries of the Great Wall of China and Mysteries of the Egyptian Pyramids

56f7de2f-c862-41df-991e-65c4a8fa27c0-originalFlying Dragons and Axolotls

State Guide to Birds

Exploring Auroras

Animal Architects (7-book series)

You Have A Pet What?!: Miniature Donkey, Pygmy GoatRat, and Sugar Glider

Amazing Body Systems (7-book series)

Exoplanets: Worlds Beyond Our Solar System

What’s Beneath: Peeking Underground and Peeking Under Your Skin   9781479586660

Mysteries of History: The Mystery of the Sphinx

Science in Action: Six-book series from Abdo

Stories of the Civil Rights Movement: Rosa Parks and the Montgomery Bus Boycott and James Meredith and the University of Mississippi

Skin Care & Makeup Tips & Tricks

Hair Care Tips & Tricks

What Makes Vehicles Safer?

What Makes Medical Technology Safer?

Ancient Aztecs

Everything World War I         WWI

Canada: Countries of the World

What’s Your Style?: Boho Fashion, Hipster Fashion, Preppy Fashion

Hidden Story: Drugs, Gangs and Crime, Homelessness

The Science of Car Racing

US Government and Civics: State Government, Civic Responsibilities, Government in Your City or Town

What Is a Parliamentary Government?

What Is Communism?

Super Social Studies through Infographics: World Geography, Economics, US History

Stephen Hawking: Extraordinary Theoretical Physicist

Teen Pregnancy

Thrilling Sports Cars

David Karp: The Mastermind behind Tumblr

Today’s U.S. National Guard

Korematsu v. the United States

Strength Training for Teen Athletes

Domestic Violence

Iran: Countries of the WorldIran

National Geographic: Big Cat Costumes

Our Animal World (6 books)

Shop Tech: The Science of Cars

Cool Parties (6 books)

Cool School Spirit (6 books)

Our Nation’s Pride (6 books)

A Bug’s World (6 books)Print

Girls Play to Win: Skiing & Snowboarding

Everyday Science (2 books)

Shockwave (2 books)

Cool Music (3 books)

Illegal Immigration. Essential Library

Fact & Fable: State Stories (4 books)

Cool Performances (6 books)cb_coolperformances

Super Simple Crafts (6 books)

Meet Your Community Workers (6 books)

Rib-Ticklers Spelling (3 books)