It all starts with erosion for sedimentary rock. Worn down bits of rock become pressed together under pressure into strata, or layers. The formation of rock such as sandstone, shale, limestone, and dolomite is explained in this fact-filled book. Readers will also learn that this type of rock is useful in determining the Earths geological history because its layers often hold fossils and other geological clues.
Crystals are made up of minerals hardened into distinct shapes with regular repeating patterns. This informative book takes a look at the underground process that creates crystals, from sparkling quartz to ordinary salt, as well as where they are found and how they are mined.
Rock collecting is a hobby that is easy to start. This engaging book describes how to dig, where you can and can't dig (restricted in national parks), the necessary equipment, how to identify rocks and gems, and the proper recording and storage of your collection.
This fascinating book explains how plants and animals become fossils, how they are extracted from excavation sites, and how paleontologists and geologists piece together Earth's history by studying these ancient clues.
Heat, pressure and stress can also change some igneous or sedimentary rocks into other kinds of rocks. This fact-filled book describes the process that turns limestone into marble, shale into slate, and granite into gneiss. Metamorphic rocks are often used as materials for floors, roofs, and counter tops because of their beauty.
Igneous rock has a dramatic beginningit requires red-hot volcanic activity. This fact-filled book explains how granite, lava, basalt, silica, quartz and feldspar are formed after hot, molten rock cools. Readers will also learn about volcanoes and tectonic plates, the minerals that make up igneous rocks, and the crystallization of rock material.
Who are we, really? We share traits with our parents, but our genetic makeup is unique. Each one of us is a one-and-only creation. Through colorful photos, diagrams, and text, you can learn about genetics. See how the simple pea plant taught us the rules of inheritance. Find out how our genetic code is unlocking the mystery of where we came from and our connections with all living things.
All life starts with a set of instructions that can turn basic cells into hearts, tails, flower petals, or toenails. DNA is the amazing code of life that is found in every organism. Through colorful photos, diagrams, and text, you can learn how DNA is passed from cell to cell, controlling growth and change in all living things. Find out how we can use the properties of DNA to save endangered animals and even to catch criminals!
From insects to elephants, every living thing on this planet is made up of cells, the tiny building blocks of plant and animal life. Each cell is alive-and each has work to do! What do cells look like? How do millions and billions of cells work together to form one plant, one animal, or one human being? Guided by colorful photos, diagrams, and text, you can take a closer look at the amazing world of cell science-and see what's next.
Trees were one of the first natural resources used by man. In North American, most native and early European settlements were set up near forests from where wood was harvested for firewood, building homes and boats, and for fortifying villages. Western Canada had, and continues to have, huge coniferous forests. McKenzie in British Columbia, Canada, is a community based on timber mills, timber supply and tourism. It has a population of 5,450 people.
Mining People mine for coal, oil, minerals, and metals. These are used for energy and as raw products to make things. In various parts of North America there are huge areas rich in one or more of these natural resources. Gillette, in Wyoming, is the coal-mining capital of the USA. Nearby is the small community of Moorcroft. The community developed from an old wild west cattle-ranching center and is now largely based on oil and coal-mining. About 900 people live in the small town.
People first domesticated wild animals and plants more than 10,000 years ago. The first peoples of North America quickly learned to farm using hand- and animal-power. As technology developed, farming machines were invented. These helped develop farming in many regions of North America previously too difficult to cultivate. From 1840 to 1880, Wisconsin USA became the breadbasket of America, and crop- and livestock-farming developed quickly. The village of Monticello is famous for its dairy farming and cheese. The community is still largely based on this. It has a population of about 1,200 people and is the focus of this book about life in a farming community.
This title looks at offshore fishing. Around the coast of much of North America, fishing stocks have greatly declined as a result of overfishing, pollution, and global warming. Nova Scotia, in the northeast of Canada, once had a huge fishing industry. In 1753, people from Germany, Switzerland, and France came from Europe to set up colony at Lunenburg on the coast. They soon set up a fishing and shipbuilding industry. The community grew until about 1980, when the fishing industry largely stopped. Since then, the community has had to reinvent itself. It is still largely based on the old industries, but tourism is as important. Lunenburg has a population of about 3500 people.
This informative book focuses on temperate forest food chains. It looks at the plants, herbivores, carnivores, and omnivores of this habitat and how they get food energy during the various seasons of the year.
Children will enjoy exploring the vast prairies of North America in Prairie Food Chains. Young readers will learn about the different types of prairie habitats, how animals get the nutrients they need, and the fascinating adaptation some prairie animals undergo to survive in their habitats.
The tundra is one of the most extreme habitats on Earth, and yet hundreds of species of plants and animals thrive there. In Tundra Food Chains, fascinating photographs and clear text teach children about how the plants and animals of the tundra have adapted to survive, and the many ways they manage to find food in this stark habitat.
Children will be fascinated by the variety of plants and animals found in Australian Outback Food Chains. Through spectacular photographs, illustrations, and text, this book examines the Outback habitat and the adaptations that its resident wildlife have made over time to live in this harsh environment. Topics covered in this book include how plants make food dangers to Outback food chains herbivores, carnivores, and omnivores
A wide variety of plants and animals live, visit, and feed in wetlands, but wetlands are fast disappearing. This informative book describes life in a specific wetlandthe marsh. Beautiful photographs, illustrations, and text explain which plants and animals live in this habitat and how they interact with one another. Young readers will learn about wetland herbivores, carnivores, and omnivores how wetland animals survive the changing seasons the importance of wetlands to migrating animals dangers to wetlands
Coral Reef Food Chains takes readers on an exciting underwater journey to one of the worlds most fascinating habitats. Stunning photographs and detailed illustrations help show the relationships between the plants, herbivores, carnivores, and omnivores that live in and around this unique and fragile habitat.
Young readers will be astounded by the tiny organisms that live in soil, their ecological roles, and how they adapt to living there. Children will learn the value of even the smallest bacteria and be amazed by the impact that soil degradation has on an entire ecosystem.
Soil Erosion and How to Prvent It helps young readers see the real impact of erosion on all life. This intriguing book describes the processes of weathering, erosion, and deposition, the impact of erosion on plants and animals, and kid-friendly steps to preventing erosion.
Children will enjoy finding out about different types of soils from different climates, what animals and plants live in these different soils, and just how valuable soil is to human life.
How Is Soil Made introduces children to the concepts of organic and inorganic parts of soil, the nutrient cycles of plants, and decomposition. Complex processes such as weathering, erosion, and deposition are also made easy to understand.
Green living means changing the way we live and use resources so that the environment is able to produce indefinitely the things we need to live. Building a Green Community walks young readers through a model community identifying green living practices at work, at home, on our highways, and at the store. This fascinating book also includes case studies of green communities around the world.
The oldest and most important source of power for our planet is the Sun. This amazing new book explains why solar power is becoming a very real replacement for our current energy sources. Detailed images feature different types of solar collectors, solar thermal plants, and solar cells, and help explain how they are used. Special case studies identify areas where solar power is already in use around the world.