Discusses how the respiratory system brings essential oxygen into the body and removes useless carbon dioxide. The body's cells need oxygen to change nutrients from food into the energy they need to perform their jobs. Reading Essentials in Science.
This book is an introduction to biomes and ecosystems and provides background for the in-depth discussion of the ocean biome. Reading Essentials in Science.
Oceanography is the study of the ocean's composition, movements, and organisms. Reading Essentials in Science.
This book describes the process of making paper. Reading Essentials in Science.
Isaac Newton's laws of motion describe inertia; the relationship between force, mass, and acceleration; and action/reaction. Reading Essentials in Science.
This book discusses how physical activity has numerous important benefits, such as building strong bones, powerful muscles, and a strong heart. Reading Essentials in Science.
Snails, oysters, scallops, and octopuses are among the typically shelled, soft-bodied invertebrates knows as mollusks. Reading Essentials in Science.
This book discusses how the human body systems work together to keep the body running smoothly. The nervous system leads this team of systems. Reading Essentials in Science.
This book is an introduction to the concept of motion, discussing its forms and the laws that govern it. Reading Essentials in Science.
Explains the five main types of mountains--fold, fault-block, dome, volcanic, and plateau--and describes how they provide valuable resources for people, farming, mining, and tourism. Reading Essentials in Science.
This book presents a study on muscles, including what they are and what they do, and explores the workings of all the muscles of the body and how they help the body in movement. Reading Essentials in Science.
This book explains what scientists have discovered about the Moon. Reading Essentials in Science.
This book explains where metals are found, how they are processed, and what types of things are made from metal. Reading Essentials in Science.
This book is an overview on mixtures and solutions, the types of substances used, and the several properties and names they have in their chemical compounds. Reading Essentials in Science.
This book takes a look at the various kinds of matter and how to measure length, area, volume, and gravity. Reading Essentials in Science.
This book takes a scientific look at natural disasters around the world. Reading Essentials in Science.
This book is an introduction to biomes and ecosystems and provides background for the in-depth discussion of the mountain biome. Reading Essentials in Science.
With every question that is answered about the universe, a dozen more are raised. Scientists are creating better telescopes and information-gathering equipment to continue to unlock ever-deeper mysteries of space. Reading Essentials in Science.
Cartography is the science of representing the Earth and its features accurately through maps. This book introduces students to the different methods that have been used throughout history to map the world, describing tools used by explorers, past and present, and the different types of maps that have been used from ancient times to the present. Reading Essentials in Science.
This overview of magnets and magnetism describes the force of magnetism, Earth's magnetic properties, and how magnets are used. Reading Essentials in Science.
This book explains how glass has been made from the same materials for thousands of years. Reading Essentials in Science.
What goes up must come down--all because of gravity. This book discusses the universal force of gravity. Reading Essentials in Science.
This book explores humankind's journey into space, from the first telescopes to the International Space Station. Reading Essentials in Science.
This book introduces the various habitats in the desert and looks at the harsh environments that the plants, animals, and people face every day. Reading Essentials in Science.
This book takes a look at the life cycles of plants and animals, including the key events and changes a living thing goes through in its lifetime. Reading Essentials in Science.
