Bullfrogs are big eaters, consuming almost anything that fits in their mouths. Meals include birds, turtles, snakes, and even other frogs. At one time, bullfrogs lived only in North America and east of the Rocky Mountains. Today, the large frogs have invaded many parts of the world, causing problems for native wildlife. Look inside to discover how bullfrogs became an invasive species and what is being done to help stop their spread.
the Sea Lamprey have invades the Great Lakes where they have killed off native species and harmed the fishing industry. Find out hoe they arrived, the problems they cause and other places that are on the lookout for these animals.
How the Brown Tree Snake made themselves at home, disrupted the island's ecosystem, and created problems for its people and native animals.
Dramatic photographs of spewing and flowing lava will capture the attention of any child. In this fantastic book, children will be excited to learn what a volcano is and what makes it erupt. Simple explanations describe the different kinds of volcanoes, including cinder, cone-shaped, shield, and composite as well as the different kinds of lava and the land formations they create on land and under the ocean. Other topics include the reason volcanoes often erupt during earthquakes, why giant tsunami waves are sometimes created by underwater earthquakes, and how volcanoes are studied in order to predict and prepare for eruptions. Children will also enjoy making their own volcano out of household materials.
This magnificent book uses beautiful photography to help young children understand that oceans are a type of habitat or place in nature where plants and animals live. Simple text explains why some oceans are warm and some are cold, which kinds of plants and animals live in oceans, and how the bodies of ocean animals are built to help them glide through water. Other topics such as photosynthesis, tide pools, and coral reefs are briefly and simply explained. Children will be delighted by the images of seals, penguins, polar bears, dolphins, and more.
Coasts are areas of land next to oceans. Coasts can be sandy or rocky and have landforms such as cliffs, sea stacks, caves, and arches. Coasts can be next to open oceans or be sheltered in bays or coves. In this beautifully photographed book, Bobbie Kalman takes children on a tour of different coasts, where they can ride some breathtaking ocean waves or meet underwater animals that live in nearby coral reefs. Children will also be introduced to some amazing coastal cities and learn about famous coastal rock formations.
Why do people need rivers? What causes rivers to flood? These are just a few of the questions answered by this fascinating introduction to rivers by Bobbie Kalman. Topics include the paths of rivers, how rivers carve through rocks, types of rivers, waterfalls, headwaters, tributaries, estuaries, deltas, fiords, river plants and animals, people and rivers, and famous rivers.
Steamships, locomotives, and the airplanethese machines revolutionized the world. The Revolution in Industry takes a look at how these and other machines changed history. Young readers will be along for the ride on the Wright brothers first flight, and aboard some of the largest steamships to ever sail the world. Revolution in Power will infuse readers with a greater appreciation of the achievements all of us take for granted today.
In this fascinating book by Bobbie Kalman, children will learn about how mountains and islands form from volcanoes, how wind and rivers create canyons, how rivers and streams create underground caves, how ocean waves shape coasts, and how glaciers make valleys. They will enjoy looking for rock formations in the shapes of animals, trees, and even ghosts!
This fascinating book explains to young children why the land on Earth has different shapes in different places. Amazing photographs and illustrations show examples of continents, mountains, valleys, plains, and caves, as well as the forests, animals, and water that may be found on each landform. Simple text also describes what volcanoes are and how lava flows can create mountains. The role that weather, such as rain and strong wind, plays in shaping sand dunes, mesas, buttes, and canyons is also described.
Coasts are areas of land next to oceans. Coasts can be sandy or rocky and have landforms such as cliffs, sea stacks, caves, and arches. Coasts can be next to open oceans or be sheltered in bays or coves. In this beautifully photographed book, Bobbie Kalman takes children on a tour of different coasts, where they can ride some breathtaking ocean waves or meet underwater animals that live in nearby coral reefs. Children will also be introduced to some amazing coastal cities and learn about famous coastal rock formations.
This extraordinary book shows in a simple way how the Sun's light and warmth affect Earth. Children will be amazed to learn that the Sun is actually a star, and that its position and distance from the Earth cause day and night as well as changing weather and the seasons.
Environmental activists are concerned for the well being of the environment, including all people, plants, and animals. This wonderfully informative title shows how environmentalists work to preserve and improve the natural environment and how young environmentalists can become positive activists themselves. Readers will learn what actions they can take to make the world a better place to live in.
Edison, Marconi, and Bell. Inventors and Inventions brings these scientists and others to life. Young readers take a front row seat as Thomas Edison invents the light bulb. They'll also listen in as Guglielmo Marconi tests his first wireless telegraph, and Alexander Graham Bell makes the first phone call. This colorful graphic history is sure to inspire young readers.
The fight for animal rights can be controversial. Modern champions for animal rights believe that animals should not be regarded as property, and they should not be used for food, clothing, for entertainment, or in scientific research. This illuminating book helps explain the difference between animal welfare and animal rights, and what cruelty is and who defines it. Young animal lovers will learn how they can fight for the protection and preservation of animals in a peaceful way.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the power of solar energy.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the property of water.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the states of matter.
Following the scientific process, this titles provides instructions on how to conduct experiments that help students gain a better understanding of sound.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of plants and plant life.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of process of respiration in cells.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of rocks and minerals.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the property and characteristics of soil.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of levers and pulleys.
Following the scientific process, this title provides instruction on how to conduct experiments that help students gain a better understanding of light.
