Follow along as a fictional researcher observes and makes journal entries about their field trip through North America's Great Lakes ecosystem. Outstanding photographs highlight the animals, plants, and people that inhabit the world's largest group of freshwater lakes. Simple graphs show facts about the lakes, and the final report describes efforts being made to preserve them.
This engaging book gives readers core information about grassland biomes on prairies, steppes, pampas, and savannahs. Find out where each kind is found, how animals and plants have adapted to life on open grassland, who lives in these environments, and how humans impact life there.
Follow along as a fictional researcher observes and makes journal entries about their field trip down the Mississippi River ecosystem. Outstanding photographs highlight the animals, plants, and people that inhabit one of the world's major river systems. Simple graphs show facts about the river, and the final report describes efforts being made to preserve it.
Follow along as a researcher observes and makes journal entries about their field trip through the Amazon rain forest ecosystem. Outstanding photographs highlight the animals, plants, and people that inhabit the world's largest tropical rain forest stretching across eight countries in South America. Simple graphs show how much the rain forest has changed, and the final report describes efforts being made to preserve it.
This fascinating book gives readers core information about marine biomes on coasts, in coral reefs, frozen oceans, and in the deepest depths of the ocean. Find out where each kind is found, how animals and plants have adapted to life underwater, who lives in these environments, and how humans impact life there.
Follow along as a fictional researcher observes and makes journal entries about their field trip through the Shunan Bamboo Forest ecosystem. Outstanding photographs highlight the animals, plants, and people that inhabit China's oldest bamboo forest. Simple graphs show facts about the forest, and the final report describes efforts being made to preserve it.
Follow along as a researcher observes and makes journal entries about their field trip through the Sonoran Desert ecosystem. Outstanding photographs highlight the animals, plants, and people that inhabit this hot desert that straddles the United States and Mexico. Simple graphs show how much the desert has changed, and the final report describes efforts being made to preserve it.
This engaging book gives readers core information about alpine and arctic tundra biomes. Find out where each kind is found, how animals and plants have adapted to life in these mostly bare environments, who lives in these places, and how humans impact life there.
Follow along as a researcher observes and makes journal entries about their field trip through the Arctic ecosystem. Outstanding photographs highlight the animals, plants, and people that inhabit the frozen top of the world in Canada and the United States. Simple graphs show how much the Artic has changed, and the final report describes efforts being made to preserve it.
Follow along as a researcher observes and makes journal entries about their field trip through the everglades ecosystem in Florida. Outstanding photographs highlight the animals and plants that inhabit this unique wetland area. Simple graphs show how much the everglades have changed, and the final report describes efforts being made to preserve it.
This beautiful book gives readers core information about subtropical, polar, coastal, and rain shadow desert biomes. Find out where each kind is found, how animals and plants have adapted to lack of rain, who lives in these deserts, and how humans impact life there.
This gorgeous book gives readers core information about forests in the taiga, tropical and temperate rainforests, and deciduous forest biomes. Find out where each kind is found, how animals and plants have adapted to life among the trees, who lives in these forests, and how humans impact life there.
Engineers design tunnels to help solve transportation challenges for people everywhere. Young readers will learn about the steps in the engineering design process and see what shapes and materials are used in construction to make tunnels stable. A link to interactive activities online plus an activity in the book allow readers to create tunnels that can withstand weight, weather, water, and natural disasters!
In this fascinating title, readers explore how light and sound waves transfer information. From telescopes that extend our sense of sight to satellites that help us communicate across large distances, patterns of waves transfer information in many ways. A link to interactive activities online plus an activity in the book allow readers to use what they have learned about waves to engineer wave patterns that communicate across distances.
This engaging book describes the properties of sound waves, how they move, and the way our ears catch them. Readers will learn how sound waves travel through different mediums and be amazed by the different ways sound waves are used in real life, such as for communication with animals and deep-sea exploration. A link to interactive activities online plus an activity in the book allow readers to experiment with sound waves to achieve different sounds.
This exciting title introduces readers to the concept of a wave and the patterns and properties common to both light and sound waves. Clear text and detailed diagrams combine to demonstrate the cause-and-effect relationships involved in the properties of amplitude, wavelength, and frequency. A link to interactive activities online plus an activity in the book allow readers to explore key concepts close up by creating their own wave models.
This exciting book explores the culture and achievements of the ancient Maya through the examination of artifacts that have survived through the centuries. Each primary-source artifact offers the reader significant clues to the civilization's technologies, cultural traditions, foods, and conflicts.
This important book explores the culture and achievements of ancient Mesopotamia through the examination of artifacts that have survived through the centuries. Each primary-source artifact offers the reader significant clues to the civilization's technologies, cultural traditions, foods, and conflicts.
Engineers design bridges to help solve the challenges of barriers that block the movement of people. Young readers will learn about the steps in the engineering design process and see how different types of bridges suit different types of obstacles. They will also discover what materials are used in construction to make bridges stable. A link to interactive activities online plus an activity in the book allow readers to create bridges that stand up to the forces of extreme weather and natural disasters.
This revealing book explores the culture and achievements of ancient Rome through the examination of artifacts that have survived through the centuries. Each primary-source artifact offers the reader significant clues to the civilization's technologies, cultural traditions, foods, and conflicts.
Readers take on the role of historical detectives as they examine speeches as primary sources and discover how they can be used to study the past.
This interesting book explores the culture and achievements of ancient Greece through the examination of artifacts that have survived through the centuries. Each primary-source artifact offers the reader significant clues to the civilization's technologies, cultural traditions, foods, and conflicts.
Readers take on the role of historical detectives as they examine photographs as primary sources and discover how they can be used to study the past.
This awesome book explores the culture and achievements of ancient Egypt through the examination of artifacts that have survived through the centuries. Each primary-source artifact offers the reader significant clues to the civilization's technologies, cultural traditions, foods, and conflicts.
Readers take on the role of historical detectives as they learn about artifacts as primary sources and discover how they can be used to study the past.
