"Nature is not always kind. Earthquakes and storms wipe out cities. Entire cultures and their histories can be lost. When disaster strikes, some people work to save cultural items. They preserve cultu
"There are a few scientists who are famous. We all know their names--Einstein, Curie, Galileo, Darwin. But there are many scientists who are overlooked. During their lives, some of these scientists fa
"Some epic fails are world famous. Many people have heard of the sinking of the Titanic and the burning of the Hindenburg. But not everyone knows about the Great Smog, a London-based air pollution dis
Anna imagines competing in the Iditarod, a treacherous, 1,000 mile dogsled race through the Alaskan wilderness. Includes problems to solve and glossary.
