Explains what quasars are, including their original discovery in the 1960s, how scientists think they are formed, and their relationship with black holes.
Explains what supernovas are, including what causes these giant star explosions, their relationship to neutron stars, and when the first recorded supernova happened.
Introduces Easter and provides information about and recipes for holiday-themed foods, including Easter brunch scrambled eggs, bunny cookies, and homemade chocolate Easter eggs.
Presents detailed step-by-step instructions for making origami Halloween decorations, including a ghost, pumpkin, claws, bat, witch, and the witch's cat.
Introduces Christmas and provides information about and recipes for holiday-themed foods, including gingerbread Christmas trees, Swedish meatballs, and eggless eggnog.
Discusses careers in green design and construction, including solar panel installer, eco-friendly builder, green plumber, and community garden manager.
Spacecraft have a very important job—transporting people between Earth and space. Readers explore the history of this mode of transportation, including the spacecraft that brought people to the moon a
Scientists are exploring all types of sustainable resources, including power from wind. Readers to get a glimpse into the exciting development of harnessing energy using massive wind turbines. Full-co
Introduces Valentine's Day and provides information about and recipes for holiday-themed foods, including I love you cookies, te amo linguine, and chocolate dipped strawberries.
Introduces Halloween and provides information about and recipes for holiday-themed foods, including monster caramel apples, crunchy witch's fingers, and haunted black bean and corn dip.
