"Achoo! Why does my body do that? Learn the silly body science of sneezes."

A group of children learn about tornadoes and weather through visits with James Pollard Espy, William Charles Redfield, Vilhelm and Jacob Bjerkne

Yawn! Why does my body do that? Learn the silly body science of yawning.

"Planet Earth is warming, causing climates to change. In [this book], learn how climate change affects Earth's many biomes -- for example, its de

"It's fun to think about big questions, like 'Would you rather have a forked tongue or scales?' World Book has gathered dozens of such questions,

"It's fun to think about big questions, like 'Would you rather go skydiving or cliff diving?' World Book has gathered dozens of such questions, a

"It's fun to think about big questions, like 'Would you rather enter a forest guarded by fairies or an ogre?' World Book has gathered dozens of s

"A group of children learn about forces and motion through visits with Sir Isaac Newton, the Wright brothers, Robert H. Goddard, Archimedes, Simo

"It's fun to think about big questions, like 'Would you rather visit Disneyland or Jurassic Park?' World Book has gathered dozens of such questio

"It's fun to think about big questions, like 'Would you rather swim with a hippopotamus or a shark?' World Book has gathered dozens of such quest

"It's fun to think about questions like 'Would you rather search for life on Mars or on Mercury?' World Book has gathered dozens of such question

"It's fun to think about big questions, like 'Would you rather travel to Treasure Island or 20,000 leagues under the sea?' World Book has gathere