Two thousand years ago, Chinese scientists were looking for a medicine that would make them live ...

Twelve-year-old Raven Gallows, a budding detective and mortician, investigates a mysterious death...

Can Raven and the Truth Trackers uncover a legendary treasure before it falls into the wrong hands?

It oozes and gushes. It's sticky and can be deadly. Blood is our life source. But studying blood ...

Slimy, hairy, and stinky, fungus and mold thrive in disgusting places. While researching them can...

It's brown, stinky, and everyone does it--poop! Scientists learn a lot from these droppings, but ...

'Squirmy, slimy, and deadly, parasites can be disgusting. This humorous hi-lo book explores the g...

'From puke to pus, diseases can be disgusting. This humorous hi-lo book explores the gross and we...

Stinky. Smelly. Scary? Yep! Farts and burps can be a healthy part of digestion. But studying flat...

It oozes and gushes. It's sticky and can be deadly. Blood is our life source. But studying blood ...

Se derrama y gotea. Es pegajosa y puede ser mortal. La sangre es nuestra fuente de vida. Pero est...

Babosos, peludos y malolientes, los hongos y el moho prosperan en lugares repugnantes. Aunque inv...

Slimy, hairy, and stinky, fungus and mold thrive in disgusting places. While researching them can...

Es marrón, apestoso y todos lo hacen: ¡caca! Los científicos aprenden mucho de estos excrementos,...

It's brown, stinky, and everyone does it--poop! Scientists learn a lot from these droppings, but ...

Desde vómito y pus hasta ampollas y forúnculos, estudiar enfermedades no es para los débiles de c...

Stinky. Smelly. Scary? Yep! Farts and burps can be a healthy part of digestion. But studying flat...

Apestoso. Maloliente. ¿Aterrador? ¡Sí! Los pedos y eructos pueden ser una parte saludable de la d...

Se deslizan y se retuercen. Son viscosos y pueden ser mortales. Los parásitos son los invasores o...

Learn the true stories of the Cold War and how spies used listening devices planted in live cats ...

Learn about how the earth turned to liquid in New Zealand and what happens when a tsunami meets a...

Learn about the medicines that came from poison and doctors who experimented on themselves and th...

Nikola Tesla was crazy smart. He invented the idea for cell phones in 1893, discovered alternatin...

The first settler to make permanent residence in the Abilene area arrived in 1856. From the humbl...

Learn the true stories of the American Revolution and how spies used musket balls, books, and lau...

When Mrs. Reed announces that monsters have invaded the school library, Alex is horrified! Someon...

'Space is full of mystery. Scientists think that the planets, stars, and other space objects we s...

The first settler to make permanent residence in the Abilene area arrived in 1856. From the humbl...

'Space is full of mystery. Scientists think that the planets, stars, and other space objects we s...

This book explores the cause, impact, and aftermath of the tsunami that battered the coast of Asi...

'Technology is advancing rapidly. Transportation experts think self-driving cars could fill the s...

'Technology is advancing rapidly. Transportation experts think self-driving cars could fill the s...

Flame throwers, spy trees, bird bombs, and Hell Fighters were all a part of World War I, but you ...

Spy school, poison pens, exploding muffins, and Night Witches were all a part of World War II, bu...

Discover the truth about Anne Bonny, the Irish woman who was a true Pirate of the Caribbean, and ...

This book explores the cause, impact, and aftermath of the tsunami that battered the coast of Asi...

Discover the crazy language and secret codes of the Prohibition Era-why you should mind your bees...

The Pig Pen Cipher, the Devil's Coffee Mill, and germ warfare were all a part of the Civil War, b...

Technology is advancing rapidly. Transport experts think self-driving cars could fill the streets...

This or That Questions About Space and Beyond

This or That Questions About Technology

Food recycler. Fish monger. These food jobs are gross, but someone has to do them! Let readers ex...

Food recycler. Fish monger. These food jobs are gross, but someone has to do them! Let readers ex...

Deer pee collector. Zookeeper. These animal care jobs are gross, but someone has to do them! Let ...

Deer pee collector. Zookeeper. These animal care jobs are gross, but someone has to do them! Let ...

'The discovery of the ichthyosaur was the dawn of a new age of science called paleontology, and A...

Stan the Man was one of the greatest baseball players to set foot on the field and he wore a Card...

'Gross and weird facts about the Middle Ages will grab struggling and reluctant readers' attentio...