Mamífero manía (Mammal Mania) 6-Pack

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.

Hamburg, 1947, a headless body is found in the ruins of a bombed out building. No evidence or identifying clues are left behind. Inspector Frank Stave, a man traumatized by the war, does not have high hopes of solving this case. When another victim is located, Stave knows he has a serial killer on his hands. The investigation that he launches puts his personal safety at risk.

There are thousands of species of bees, and not all are yellow and black. However, the telltale yellow and black of the honeybee and bumblebee are the best known. Beginning readers explore the world of bees and find out what keeps them busy all day. From flying from flower to flower to making honey, the details in this book are both familiar and new to curious future entomologists. Full-color detailed photographs complement the low-ATOS text, making it the perfect addition to any early elementary library or classroom.