23 books • 4 series
Incredible Igneous Rock (Rockin' Earth!)
Sand Rocks! (Rockin' Earth!)
Magnificent Metamorphic Rock (Rockin' Earth!)
Do-It-Again Rock Cycle (Rockin' Earth!)
Super Sedimentary Rock (Rockin' Earth!)
Mighty Minerals in Rock (Rockin' Earth!)
Gotcha! (Plant-Tastic!)
Yikes! (Plant-Tastic!)
Whoa! (Plant-Tastic!)
Scatter! (Plant-Tastic!)
Green! (Plant-Tastic!)
Ouch! (Plant-Tastic!)
Bloody Eyes (Amazing Animal Self-Defense)
Bubbling Drool (Amazing Animal Self-Defense)
Gooey Slime (Amazing Animal Self-Defense)
Eye-Watering Stink (Amazing Animal Self-Defense)
Deadly Quills (Amazing Animal Self-Defense)
Inside an Armadillo's Burrow (Underground Animal Life)
Inside a Prairie Dog's Hideaway (Underground Animal Life)
Inside a Fox's Den (Underground Animal Life)
Inside a Groundhog's Burrow (Underground Animal Life)
Inside a Badger's Burrow (Underground Animal Life)
Inside a Chipmunk's Home (Underground Animal Life)