"Discover all the mysteries, facts, and discoveries about skeletons that are creepy--and true--in the much-anticipated companion to Mummies Exposed! and Ghosts Unveiled! The Creepy and True series explores strange phenomena, fun facts, and out of the ordinary discoveries. Have you ever wondered what lies beneath our feet? Bones have a story to tell--and not always a happy one. Bones Unearthed!, book 3 of the Creepy and True series, investigates remarkable...

Presents a brief history of space exploration, covering such topics as the first human missions, life on the International Space Station, and settling on Mars.

"Ever since mysterious bones were found in 1822, scientists and artists have tried to figure out what the creature they came from looked like. But it seems that every time they've made up their minds, someone makes a new discovery, and they have to start all over. That's only fair, though--after all, it's how knowledge advances!"-- Publisher's website

"An exploration of the metric system, including centimeters, grams, and liters"-- "Used in almost every country in the world, the metric system is an easy-to-use way of calculating length, distance, weight, and volume. Look at the label of a soft drink. You'll see both ounces and milliliters or gallons and liters listed. For kids who love to interact with their environment and measure and build things, knowledge of the metric system is a must. Filled...

"How was our universe made from a tiny speck of energy? Where did the first trees, plants, animals and humans come from? What happened to the dinosaurs? What was so miserable about medieval times? How were railroads and electricity invented? What are the perils of global warming? You might have many big questions about our planet, life and people. Embark on an entertaining journey across millennia and continents with this captivating book by Christopher...