Tamra B. Orr

Tamra Orr is a full-time writer and author living in the gorgeous Pacific Northwest. She loves her job because she learns more about the world every single day and then turns that information into pop quizzes for her patient and tolerant children (ages 16, 13, and 10). She has written more than 80 nonfiction books for people of all ages, so she never runs out of material and is sure she’d be a champion on Jeopardy!


Title   ATOS Format Qty
September 11 and Terrorism in America
Hurricane Katrina and America's Response
Obama vs. McCain and the Historic Election
Columbia Space Shuttle Explosion and Space Exploration
Polar Vortex and Climate Change 5.2
Invention of Facebook and Internet Privacy
BP Oil Spill and Energy Policy
Tucson Shooting and Gun Control
Joy 1.1
Crime Scene Investigator 6.4
Forensic Science Investigator 6.9
The Science of a Fastball 5.8
The Science of a Flip Turn 5.6
Praying Mantis 3.2
Walking Stick 3.6
The Wind Blows 3.9
We Have Hurricanes 3.9
Studying Sinkholes 5.2
Growing Nutritious Food 5.1
Understanding Sound 4.9
Poison Dart Frog 4.4
Red-eyed Tree Frog 4.7
Reticulated Python 5.3
I See Falling Stars 3.4
It Snows 3.3
Tracking an Epidemic 5.2
Investigating a Crime Scene
Forecasting a Flood
Pondering Pollution
Battling Extinction 4.9
Unearthing Fossils
Searching the Sky
Understanding Insects
How Did They Build That? Zoo
How Did They Build That? Lighthouse 3.2
It's Cool to Learn About the United States: Midwest 6.2
It's Cool to Learn About the United States: Southwest 6.4
Working at the Zoo
It's Cool to Learn About Countries: Indonesia 5.0
It's Cool to Learn About Countries: Bangladesh 5.5
Junior Scientists: Experiment with Weather
Counting Our People 5.8
Interpreter 5.8
Environmentalist 6.1
Organic Farmer 5.6
Electing Leaders 7.2
Government at Work 6.5
Crime Scene Investigator 6.4
Forensic Science Investigator 6.4
Public Health Microbiologist 5.8
Geothermal Energy 6.2
Hydroelectric Energy 6.4
  • Soon! Fall 2020
  • New! Spring 2020
  • Recent Fall 2019

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