"Discusses different gadgets used by spies, such as invisible ink, hidden cameras, small guns made to look like ordinary objects, and bugs, and includes career information"--
"Discusses football skills, including the proper techniques for passing, rushing, receiving, blocking, and tackling and provides tips for offense, defense, and special teams, including drills and tric
"Discusses different methods of secret communications used by spies, such as Morse code, the Enigma machine, the Najavo language, and digital steganography, and includes career information"--
Presents interesting facts about the human body, including what saliva is made of, what happens to dead skin cells, and the function of the smallest bones in the body.
"Discusses comets, asteroids, and meteors, including how and where they are formed in space, what scientists are doing to study and track them, and what danger these doomsday rocks are to Earth"--Prov
"Examines animals that feed on blood, including mosquitoes, vampire bats, lice, leeches, lampreys, and fleas, and looks at their anatomy, behavior, and interactions with people"--Provided by publisher
"Explores a variety of unusual insects, including locusts, army ants, and scarab beetles, and examines their biological make-up, environment, and behavior"--Provided by publisher.
"Examines mummies, including how a mummy is formed, a history of mummies, and examples of mummies that have been dug up around the world, such as King Tut, Tollund Man, and the Ice Maiden"--Provided b
"Examines meat-eating plants, including the different types of carnivorous plants, how they trap their prey, why these plants eat meat, and where they are found"--
