The Disappearing Earth
A Lesson on Soil Erosion
The Disappearing Earth takes readers on a wild and crazy ride through the soil erosion process. The Secret Agent Worms are on a mission to find out why our soil is vanishing. But along the way, they get caught up in runoff, eject from their speedboat, and are nearly gobbled by birds.
What Does the Book Teach?
- What is splash erosion?
- What is streambank erosion?
- What is runoff?
- How do slopes affect soil erosion?
- What are rills and gullies?
- What is sediment?
- How do you reduce soil erosion?
- What are terraces?
- What is no-till farming?
- What is soil texture?
- What are the three main types of soil particles?
- What are topsoil, subsoil, and the substratum?
Reading Level
The Disappearing Earth is written at a fourth-grade reading level.
Sample Pages
Learning Standards
Find out how the Secret Agent Worm materials meet National Science Education Standards and Illinois Learning Standards.
To Order
Single copy, The Disappearing Earth: $7.75
Product Number: SAW-1
Order single copies online.
Set of 10, The Disappearing Earth: $69
Product Number: SETSAW-1
Order a set of 10 online.
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“My 8-year-old daughter and her friends loved The Disappearing Earth and pronounced it ‘way cool.’”
Nancy Mesner
Water Quality Specialist
Utah State University
“The Disappearing Earth is the high quality we need to strive for to reach today’s kids.”
Jane Frankenberger
Soil and Water Specialist
Purdue University
“Well written for a young audience and nicely organized, with great explanations and easy-to-follow text… The copy makes what could be a very dry subject, soil erosion, interesting and fun.”
Association for Communication Excellence