Test Pattern Generation Using Boolean Proof Engines

How scientists changed the world, one breakthrough at a time. From the discovery of fire and the invention of the wheel to lunar landings and atoms, this book tells the extraordinary story of science and how it changed our world--one breakthrough at a time. Find out how history's most ingenious and daring scientists solved mysteries that had puzzled the ancient world for millennia, triggering an age of discovery that gave us telescopes, flying machines, steam engines, antibiotics, electricity, radio, space travel, and computers. Discover the amazing men and women who challenged conventional thinking and put their lives at risk to learn about everything from planetary orbits and gold to germs, gunpowder and radioactivity. What's the Point of Science? explains in super-simple terms how science really works and why it brought the world out of the dark ages. It's packed with surprising facts, tales of ingenuity and endeavor, and beautiful hand-drawn illustrations that bring the human story

Watch out for some wild weather! Make reading your superpower with DK's beautiful, leveled nonfiction. Use your reading superpowers to learn all about volcanoes from where they start to what happens when they erupt, famous eruptions, how we can learn about them and even make a model of one - a high-quality, fun, non-fiction reader - carefully levelled to help children progress. Eruption! The Story of Volcanoes is a beautifully designed reader all about these dramatic natural features of our world. The engaging text has been carefully levelled using Lexile so that children are set up to succeed. A motivating introduction to using essential non-fiction reading skills. Children will love to find out how volcanoes are formed; the damage - and the good - they do; where the best places are to see an eruption; and how to build their own model volcano.

Help your child power up their reading skills and learn all about a doctor's day with this fun-filled nonfiction reader carefully leveled to help children progress. DK Super Readers Level 1: Doctor will help kids learn about a doctor's important work and includes fun facts and a quiz to support development. It is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading. DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders, and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently. The DK Super Readers series can help your child practice reading by: Covering engaging, motivating, curriculum-aligned topics.Building knowledge while progressing core Grades 1 and 2 reading skills.Developing subject vocabulary on topic

Learn all about the fascinating world of insects--from bees, to butterflies, beetles, and more. Grab your magnifying glass and head out to discover all about insects-- their different types, body structures, and behaviors. Filled with eye-catching images and bite-sized information, every young nature enthusiast will marvel at the mind-boggling facts about these adaptable creatures. The book covers the seven major insect groups and includes profiles for more than 40 amazing insects, such as the stag beetle, monarch butterfly, and honeybee. Dive into their brilliant world and learn how some insects blend in with their surroundings. Discover how some can survive in different environments, while others can defend themselves against predators using clever tactics. Explore the many ways in which insects help humans, and the crucial role they play in pollination and maintaining a balance in the ecosystem. My Book of Bugs is a wonderful introduction to insects and their many incredible feature

Help your child power up their reading skills and learn all about the world's fastest animals with this fun-filled nonfiction reader carefully leveled to help children progress.DK Super Readers Pre-Level: Fast Animals will introduce kids to a parade of speedy animals--from the sprinting cheetah to a shrimp making a speedy catch of its dinner--and is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading. DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently. The DK Super Readers series can help your child practice reading by: - Covering engaging, motivating, curriculum-aligned topics.- Building knowledge while progressing key Grades Pre-K and K reading sk

Discover the wonderful world of trees through fun quizzes! This amazing book welcomes you to the plant kingdom where you can meet more than 100 species of trees, ranging from the mighty Californian redwood to the ancient banyan tree. Stunning pictures and fast facts will allow you to grasp a wealth of knowledge in a fun way. Each tree is displayed in beautiful detail, surrounded by quiz-style questions. Turn the page to find the answers, contained in a handy dataset of essential information--size, location, and distinguishing features alongside close-up pictures of the bark, leaves, and fruit. You'll be recognizing sycamore from silver birch, aspen from ash, and peach from plum in no time. Discover the unique qualities of each tree, together with how it is used in art, industry, architecture, and science. You can use the book to test your own knowledge, or how about using it as the basis of a quiz with a friend? Quiz Yourself Clever! Trees of the World is packed with information on the

A fun way to learn about trees from all over the world!Discover the wonderful world of trees This amazing deck of cards welcomes you to the plant kingdom, where you can meet more than 150 species of trees, ranging from the mighty Californian redwood to the ancient banyan tree. Stunning pictures and fast facts enable you to grasp a wealth of knowledge in a fun way. Each card contains snappy and accessible information, displaying each tree in beautiful detail. The front of the card shows the tree with a clue of what it is. The back reveals the answer, plus a dataset about the tree: its size, location, and distinguishing features alongside close-up pictures of the bark, leaves, and fruit. You can use the cards to test your own knowledge; or how about using them to play a guessing game, quiz, or a competitive comparison game with a friend? Our World in Pictures: Trees of the World Flash Cards is packed with information on the world’s most amazing trees―from those that feed us to others th

Discover the wonders of our rocky planet!This amazing deck of cards welcomes you to Earth's extraordinary minerals and gems, from sparkling emeralds to igneous rocks formed deep inside the Earth’s molten core. Stunning pictures and fast facts enable you to grasp a wealth of knowledge in a fun way. Each card contains snappy and accessible information, displaying each rock or mineral in dazzling detail. The front of the card shows the rock with a clue of what it is. The back reveals the answer, plus a dataset of essential information, ensuring you can recognize sedimentary from sandstone, metamorphic from marble, and pyrite from pearl. You’ll discover the unique qualities of each material, together with how it is used in art, industry, architecture, and science. You can use the cards to test your own knowledge, or how about using them to play a guessing game, quiz, or competitive comparison game with a friend? Our World in Pictures: Rocks & Minerals Flash Cards are packed with informat

Celebrate the festive season with Pok幦on. Packed with cool facts and awesome activities--it's the perfect present for the ho-ho-holidays! Discover the Pok幦on who love a sparkly surprise, can rustle up a feast, or will make you shiver with their icy skills. Have fun spotting Squirtle in a snowball fight, or Pikachu in a cute woolly hat. Plus, you can test your Pok幦on skills with cool quizzes, puzzles, and games. Pok幦on Happy Holidays has everything you need to make the winter season even more merry!

Meet the sea creatures living on a coral reef! Make reading your superpower with DK's beautiful, leveled nonfiction. Use your reading superpowers to learn all about a beautiful coral reef and the sea animals living there - a high-quality, fun, nonfiction reader - carefully leveled to help children progress. Fishy Tales is a beautifully designed reader all about the fish and other sea animals living on a coral reef. The engaging text has been carefully leveled using Lexiles so that children are set up to succeed. A motivating introduction to using essential nonfiction reading skills. Children will love to find out about the beautiful coral reef and all the sea animals that can be spotted on it.

How did they make that using LEGO® bricks?Find out! Meet the professional builders behind some amazing LEGO® models and learn all about how these creative experts make masterpieces using LEGO bricks.

Discover how to identify flowers, where to find them, and other details about more than 100 flowers from around the world. Compact in size yet brimming with information, An Anthology of Flowers explores a vast variety of blooms, from exotic blossoms to iconic favorites. Learn to easily identify different species using detailed annotations, vivid illustrations, and unique descriptions of each flower. Featuring colorful photographs and vibrant illustrations, this book is a treasure trove for budding botanists, nature enthusiasts, and curious readers seeking an informative flower identification book. Whether you're out exploring or flipping through its pages at home, An Anthology of Flowers is sure to bring the natural world to life.

Meet a cute collection of kind and caring Pok幦on! Did you know that a Togepi will share good luck when treated kindly? Or that a dessert decorated by an Alcremie will bring happiness to all that eat it? Learn all about these sweet Pok幦on, their surprising skills, and more in this level 1 Super Reader. The engaging text has been carefully leveled using Lexile so that children are set up to succeed. Colorful Pok幦on images, clear vocabulary, and a fun quiz will help young readers to build their reading ability, as they read about the friendly Pok幦on.

Set off on an exciting journey to meet the Pokémon of Paldea, in this Level 1 Super Reader!Discover their friendships, special skills, and the awesome mysteries they hope to uncover.The engaging text has been carefully leveled using Lexile so that children are set up to succeed. Colorful Pokémon images, clear vocabulary, and a fun quiz will help young readers build their reading ability, as they uncover the exciting secrets of Paldea.

Discover the secrets of Pokémon battles, in this Level 2 Super Reader!Learn how to catch, train, and get the best out of your Pokémon team. Captain Pikachu and his friends will show you how!The engaging text has been carefully leveled using Lexile so that children are set up to succeed. Colorful Pokémon images, clear vocabulary, and a fun quiz will help young readers build their reading ability as they uncover the exciting secrets of Pokémon.

Discover fascinating facts about communication in all its forms, from around the world and over timeEngaging factual writing introduces young readers to the most interesting aspects of languages, how they evolve and change over time.Humans’ use of language is one of our distinguishing features. Language allows us to communicate what we think, what we want, what we feel, and what we have learned. Some 100,000 years ago, humans began speaking. Since then, we have developed nearly 7000 languages. Languages are living things; they evolve and change over time. They even travel! People carry their language with them and spread it. Large language families even have their own family trees, such as Spanish, French, English. Different languages can be mixed and combined to create new languages with similar words, pronunciation, and grammar rules. Languages can even become extinct if they are not shared and learned by each new generation. Spoken languages are not the only way we communicate. Sign

Help your child power up their reading skills and learn all about mummies and what they are with this engaging nonfiction reader carefully leveled to help children progress. DK Super Readers Level 4: Secrets of the Mummies will introduce kids to mummies from all around the world--including facts about Egyptian, Inca, and Sicilian mummies--and is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading. DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently. The DK Super Readers series can help your child practice reading by: Covering engaging, motivating, curriculum-aligned topics.Building knowledge while progressing key Grades 4 and 5 reading skills.Develop

Visit one of the most incredible natural environments, meeting the Amazon’s plants and wildlife, and its peopleA unique, beautifully illustrated guide to the beauty and diversity of the Amazon – the rainforest and the river, its flora and fauna, and the people who live in the region. Applying the award-winning Eyewitness formula to the subject of the largest and most biodiverse tract of tropical rainforest in the world, and the vast river that winds its way through it, this book profiles everything from the birds, animals, and insects that live there to the nine South American countries it extends across. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature – fascinating first-hand accounts from experts in the field.

These Wonders of the World highlight astounding ancient architecture, the history of civilization, and the beauty of our planet.Highlighting more than just the Seven Wonders of the World – the Pyramids of Giza, the Hanging Gardens of Babylon, the Temple of Artemis, the Statue of Zeus, the Mausoleum at Halicarnassus, the Colossus of Rhodes, and the Lighthouse of Alexandria – DK Eyewitness Books: Wonders of the World showcases more than 50 architectural feats and natural treasures. From human-made landmarks such as the Statue of Liberty to record-breaking natural marvels like the River Nile, this book takes kids on an incredible journey around the world's most spectacular sights. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness" feature – fascinating fi

Visit one of the most incredible natural environments, meeting the Amazon’s plants and wildlife, and its peopleA unique, beautifully illustrated guide to the beauty and diversity of the Amazon – the rainforest and the river, its flora and fauna, and the people who live in the region. Applying the award-winning Eyewitness formula to the subject of the largest and most biodiverse tract of tropical rainforest in the world, and the vast river that winds its way through it, this book profiles everything from the birds, animals, and insects that live there to the nine South American countries it extends across. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature – fascinating first-hand accounts from experts in the field.

These Wonders of the World highlight astounding ancient architecture, the history of civilization, and the beauty of our planet.Highlighting more than just the Seven Wonders of the World – the Pyramids of Giza, the Hanging Gardens of Babylon, the Temple of Artemis, the Statue of Zeus, the Mausoleum at Halicarnassus, the Colossus of Rhodes, and the Lighthouse of Alexandria – DK Eyewitness Books: Wonders of the World showcases more than 50 architectural feats and natural treasures. From human-made landmarks such as the Statue of Liberty to record-breaking natural marvels like the River Nile, this book takes kids on an incredible journey around the world's most spectacular sights. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness" feature – fascinating fi

North and South enter a conflict of more than 50 battles – discover how tensions exploded into a war that lasted four years.This book takes you through the history of one of the most important times inUS history. Find out how Abraham Lincoln became president in 1860 and why hewas assassinated. Discover the horror of enslaved life, and about the Underground Railroad that helped its victims escape. Eyewitness American Civil War shows both sides of the conflict in an equal light, allowing readers to consider all views. This museum-in-a-book uses striking full-color photographs of paintings, artifacts, and illustrations of battles, famous leaders, and much more along with amazing facts, infographics, statistics, and timelines to reveal this period of US history as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fre

Dive into a watery world where many wonderful fish of all shapes and sizes swim, in rivers, lakes, and oceans.DK Eyewitness Books: Fish is an exciting and informative guide to the fascinating world of fish. Striking color photographs of tropical fish, eels, seahorses, and more offer a unique "eyewitness" view of the natural history of fish, how they behave, and how they survive. See the lethal jaws of a piranha, a porcupine fish "puffing up," how a dogfish swims, growth rings on a fish scale, what a fish looked like 400 million years ago, and a fish with legs. Learn how a school stays together, why some fish swim upside down, how a stingray stings, why fish need water to breathe, and much more. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature

North and South enter a conflict of more than 50 battles – discover how tensions exploded into a war that lasted four years.This book takes you through the history of one of the most important times inUS history. Find out how Abraham Lincoln became president in 1860 and why hewas assassinated. Discover the horror of enslaved life, and about the Underground Railroad that helped its victims escape. Eyewitness American Civil War shows both sides of the conflict in an equal light, allowing readers to consider all views. This museum-in-a-book uses striking full-color photographs of paintings, artifacts, and illustrations of battles, famous leaders, and much more along with amazing facts, infographics, statistics, and timelines to reveal this period of US history as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fre

Dive into a watery world where many wonderful fish of all shapes and sizes swim, in rivers, lakes, and oceans.DK Eyewitness Books: Fish is an exciting and informative guide to the fascinating world of fish. Striking color photographs of tropical fish, eels, seahorses, and more offer a unique "eyewitness" view of the natural history of fish, how they behave, and how they survive. See the lethal jaws of a piranha, a porcupine fish "puffing up," how a dogfish swims, growth rings on a fish scale, what a fish looked like 400 million years ago, and a fish with legs. Learn how a school stays together, why some fish swim upside down, how a stingray stings, why fish need water to breathe, and much more. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature

Teach your young children all there is to know about the minerals and rocks found beneath their feet with this delightful set of 54 flash cards.Dig up the Earth and uncover the wonderful world of rocks and minerals with this collection of colorful, educational picture cards. From rough rocks to glistening gems and everything in between, children will love mastering the names of these elements and learning all of the must-know facts and figures―there will be no stone left unturned. These two-sided cards will provide simple questions that will challenge children’s understanding, fascinating facts that will test their memory, and a pronunciation guide for each rock and mineral to help children develop their vocabulary and reading abilities. The flash cards are also large and sturdy, making them ideal for any learning environment and perfect for messy little hands. With a vibrant, detailed illustration on every card, the Rocks and Minerals Flash Cards set makes for a beautiful gift and mo

Become an eyewitness to the high-flying world of aircraft and the history of flight. This picture-led guide will take you on a visual tour of incredible flying machines. Children can learn all about the history and science of humanity's most incredible feat: flying! Find out about how technology made flight possible, which tools pilots use, and how taking to the skies has shaped human history.Throughout the pages of this children’s guide to aviation, you can expect to find: - A fresh new look; new photographs, updated information, and a new “eyewitness” feature. - A visual tour through the topic combined with bite-sized text. - Brand new eyewitness accounts from experts in the field.Eyewitness Flight gives a detailed overview of all things aircraft for kids aged 9+, including helicopters, gliders, zeppelins, monoplanes, biplanes, and even triplanes. Using full-colour photographs of different types of aviation, including an aircraft from Leonardo da Vinci's wing machines to jet airliner

Imagine if you could travel back in time and walk the streets of the past. Where would you go first? Incredible History turns back time to reveal realistic reconstructions of the most incredible locations and exciting moments in history. You’ll feel the roar of the crowd in the Roman Colosseum, walk the ramparts of the Great Wall of China, and ride the first railways. Each story begins with an archaeological site or artifact. You’ll learn when and how it was discovered, and what it teaches us about how the people who lived at the site might have spent their days. Then, you’ll see the location recreated in jaw-dropping 3D detail. Using archaeological evidence, the people and places of the past will be brought back to life before your very eyes. With each page packed with fantastic facts and extraordinary pictures, Incredible History brings together the best parts of history and archaeology to recreate the entire history of the world.

125 comprehensive, easy-to-use cards for exam preparationA fantastic aid for exam preparation, these flash cards make biology crystal clear and will have you exam-ready in no time.Make biology super simple! These handy revision cards condense everything you need to know about biology into bitesize key facts and crystal clear diagrams. Studying for exams has never been so easy. Biology is explained in simple, user-friendly language, with colorful illustrations to help you grasp difficult concepts at a glance. Whether you’re catching up on lessons, doing homework, or revising for exams, these super simple cards will make you a biology expert in no time.

A fantastic aid for coursework, homework, and test revision, these revision cards make Physics crystal clear and will have you exam-ready in no time.Making super simple sciences even simpler! With images, graphics, equations and definitions, learning has never been easier. Super Simple Revision Cards condense the sciences into a manageable, visually appealing format that is easy to digest and revise from. With each of the 250 cards containing definitions and key facts on one side, and a detailed graphic on the other, memorizing science facts is made easy and enjoyable. Difficult concepts are presented clearly and the full-color illustrations and photographs make the process of absorbing the information fun and simple. You’ll learn everything you need to know to ace that test!

125 comprehensive, easy-to-use cards for exam preparationA fantastic aid for test preparation, these flash cards make math crystal clear and will have you exam-ready in no time.Make math super simple! These handy flash cards condense everything you need to know about math into bitesize key facts and crystal clear diagrams. Studying for exams has never been so easy. Math is explained in simple, user-friendly language, with colorful illustrations to help you grasp difficult concepts at a glance. Whether you’re catching up on lessons, doing homework, or revising for exams, these super simple cards will make you a math expert in no time.

STEM subjects are where the future's at. Now you can be a science superstar with this colorful practice book. Are you a budding Einstein? Or do you need a little more help to avoid falling behind in science class? DK's How to be Good at Science, Technology, and Engineering course book for children aged 7-14 now has two accompanying workbooks: Workbook 1 covers ages 7-11 and Workbook 2 covers ages 11-14. These workbooks will help to cement everything you need to know about "STE" subjects through practice questions and practical exercises. Easy-to-follow instructions allow you to try out what you've studied, helping you understand what you've learned in school or giving extra revision practice before that important test. Workbook 2 is aimed at children aged 11-14 (Grades 6, 7, and 8 in the US), and covers all the key areas of the school curriculum for this level, including genes and DNA, atoms and molecules, chemical reactions, the periodic table, heat transfer, electricity and magnetism