WHY IS THE arctic so cold? How do polar bears cross thin ice? How did people learn to survive in that harsh climate? Find out the answers to these questions and more in Magic Tree House Research Guide: Polar Bears and the Arctic, Jack and Annie's guide to the arctic. This is the nonfiction companion to Polar Bears past Bedtime.


From the Trade Paperback edition.

שם הספר
Favorite greek myths
Mummies in the morning
The knight at dawn
Dinosaurs before dark
Night of the ninjas