Thomas K. Adamson

Scooby-Doo and the Mystery Inc. gang are on the Case of the Spinning Spook. He's been stealing the mixers at the cooking competition. Can Scooby and the gang solve the mystery in time and uncover the true villain? Or will the Spinning Spook continue to terrorize the contest in Crystal Cove?

Scooby-Doo and the Mystery Inc. gang are on the Case of the Greedy Ghost. He's been scaring away people at the Crystal Cove Festival. Can Scooby and the gang solve the guessing game and uncover who is behind the chaos? Or will the Greedy Ghost continue to haunt the festival?

How can aircraft carriers support heavy jets and helicopters without sinking? Why do cruise ships the size of cities stay afloat, but submarines often disappear underwater? This title answers the questions bobbing in young readers' minds as they learn about a fleet of diverse ships.

An airplane taking off and disappearing into the clouds is a remarkable sight. It's like a bird's flight taken to a new level. In fact, only the Ruppell's griffon vulture can fly as high, at heights above 30,000 feet This title will get beginning readers off the ground and soaring.

You are an American in the 1960s. The United States and Soviet Union have been in a space race since the Soviet Union launched the Sputnik satellite in 1957. Since then, the two superpowers have been fighting over which country will control the universe. President Kennedy begins a new space program, with a goal of landing a man on the moon before the end of the 1960s. You want to be a part of it. Can you help beat the Russians and help the United States land a man on the moon?

Jupiter is the biggest planet in the solar system, but it still has secrets The discovery of its moons changed how scientists viewed the whole solar system. With a storm that s raged for hundreds of years, and a gravitational pull that protects the whole solar system, scientists are passionately curious about the gas giant. Learn about Jupiter's discovery, what it would be like to visit the gas giant, and what scientists still want to know. Vivid photos and illustrations, scientist spotlights, and sidebars help unlock the secrets of Jupiter."

How much water does it take to fill the fishbowl? How much milk do you need for your cereal? From cups to gallons, learn how measuring tools help you fill it up.

How tall will my sunflower grow? How long is Fido's leash? Learn how rulers and odometers can take you from inches to miles.

How many caramels in a pound? Who caught the biggest fish? Learn how balances and scales help you with the heavy lifting of measuring weight.