Jennifer Boothroyd
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Tractors Go to Work (Farm Machines at Work)
How Big? How Heavy? How Dense?: A Look at Matter (Lightning Bolt Books: Exploring Physical Science (Library)) Library Binding – January 1, 2011
From Washboards to Washing Machines: How Homes Have Changed (Lightning Bolt Books Comparing Past and Present)
Facial Features: Freckles, Earlobes, Noses, and More (Lightning Bolt Books ® ― What Traits Are in Your Genes?)
Cross-Pollination (First Step Nonfiction ― Pollination)
What Is a Gas? (First Step Nonfiction ― States of Matter)
Give It a Push! Give It a Pull!: A Look at Forces (Lightning Bolt Books ® ― Exploring Physical Science)
Harvesters Go to Work (Farm Machines at Work) Paperback – August 1, 2018
Disney Heroes and Villains Quizzes: From Aladdin to Ursula (Disney Quiz Magic)
The Energy That Warms Us: A Look at Heat (Lightning Bolt Books ® ― Exploring Physical Science)
Caution in the Kitchen!: Germs, Allergies, and Other Health Concerns (Lightning Bolt Books ® ― Healthy Eating) Paperback – January 1, 2016
Eye Color: Brown, Blue, Green, and Other Hues (Lightning Bolt Books ® ― What Traits Are in Your Genes?)
From Chalkboards to Computers: How Schools Have Changed (Lightning Bolt Books ® ― Comparing Past and Present)
Insect Pollinators (First Step Nonfiction ― Pollination)
From Marbles to Video Games: How Toys Have Changed (Lightning Bolt Books ® ― Comparing Past and Present) Hardcover – August 1, 2011
