Computer System Security

Hop to it with Science Comics: Frogs, the next volume of First Second's middle-grade nonfiction series!Every volume of Science Comics offers a complete introduction to a particular topic—dinosaurs, the solar system, volcanoes, bats, robots, and more. Whether you're a fourth grader doing a natural science unit at school or a thirty-year-old with a secret passion for airplanes, these books are for you!With their signature sounds, athletic tongues, and bulging eyes, there’s a lot to love about frogs! But did you know that they soak up air and even liquid through their skin? Or that they use their eyes to swallow food? From tiny tadpoles in water to boisterous bullfrogs on land, the life cycle of these amphibious acrobats is one of the coolest examples of metamorphosis around. So pull up a lily pad and dive in, because the frog facts in this book will truly give you something to croak about!

Get a charge out of Science Comics: Electricity, the next volume of First Second's middle grade nonfiction series!Every volume of Science Comics offers a complete introduction to a particular topic—dinosaurs, the solar system, volcanoes, bats, robots, and more. Whether you're a fourth grader doing a natural science unit at school or a thirty year-old with a secret passion for airplanes, these books are for you!From simple circuits to giant grids, fossil fuel power plants to wind farms, electricity keeps the world running. In Science Comics: Electricity, you’ll discover where electricity comes from, why lightning suddenly strikes, and how we’ve harnessed it all to turn the lights on in your room. Ready for action? Get energized with electricity!

看漫畫學科普Science Comics新書，以冒險故事的形式，帶讀者深入認識禿鷹、老鷹等擁有利爪、具有速度的掠食性鳥類。除了介紹動物習性、食物鏈位置高低，同時圖文相輔解釋生字。Spread your wings with Science Comics: Birds of Prey, the latest volume of First Second's middle grade nonfiction series!Every volume of Science Comics offers a complete introduction to a particular topic―dinosaurs, the solar system, volcanoes, bats, robots, and more. Whether you're a fourth grader doing a natural science unit at school or a thirty-year-old with a secret passion for airplanes, these books are for you!In this book, you’ll meet some of the world’s most skilled hunters up close and personal, from the majestic eagle to the oft-maligned scavenger vulture! Armed with razor-sharp claws, keen eyesight, powerful wings, and killer instincts, these stealthy predators can make a meal of rodents, fish, snakes, lizards, monkeys, and even kangaroos! Discover how these amazing birds, who are often at the top of the food chain, play an integral role in many different ecosystems around the world.

Every volume of Science Comics offers a complete introduction to a particular topic – dinosaurs, coral reefs, the solar system, volcanoes, bats, flying machines, and more. These gorgeously illustrated

Spread your wings with Science Comics: Birds of Prey, a new and exciting volume of First Second's nonfiction graphic novel series Every volume of Science Comics offers a complete introduction to a particular topic--dinosaurs, the solar system, volcanoes, bats, robots, and more. Whether you're a fourth grader doing a natural science unit at school or a thirty-year-old with a secret passion for airplanes, these graphic novels are for you In this volume, you'll get up-close and personal with some of the world's most skilled hunters, from the majestic eagle to the oft-maligned scavenger vulture Armed with razor-sharp claws, keen eyesight, powerful wings, and killer instincts, these stealthy predators can make a meal of rodents, fish, snakes, lizards, monkeys, and even kangaroos Discover how these amazing birds who are often at the top of the food chain, play an integral role in many different ecosystems around the world.