At the start of the Middle Ages, governments were practically nonexistent. Leaders couldn't organize their subjects or protect their borders. Feudalism evolved to bring the leaders and nobility together. Reading Essentials in Social Studies.
This book explains how the Vikings were a civilization of extraordinary explorers and creative craftspeople who influenced much of Western history. Reading Essentials in Social Studies.
This book looks at the geography, history, resources, culture, and people of Australia. Reading Essentials in Social Studies.
This book takes a look at the microscopic organisms, including mold and bacteria, discusses the causes of allergies, and looks at the invention of the microscope. Reading Essentials in Science.
The periodic table designed by Dmitri Mendeleev provides a wealth of information about the elements that make up our world. This book presents a study of the development and purpose of the periodic table of elements, explaining why this method of organization is needed and how scientist utilize the information. Reading Essentials in Science.
