Bøger af Greg Roza

The origins of Valentine's Day are a bit murky at best, but this day of romance and friendship seems to date all the way back to the 1300s. Of course, people weren't buying each other cards and balloons back then, so our modern customs have melded with medieval traditions. Readers will love diving into the back story of this holiday, which is about much more than chocolate and Cupid. Twenty of the most fascinating facts are supported by accessible explanations and bright photographs. Graphic organizers offer more essential information about this fun topic, an intriguing introduction to curricular cultural studies.

Halloween is tons of fun, even if it's a bit spooky at times! Whether a reader is more into the tricks or the treats of Halloween, they'll love finding out why they dress up, carve pumpkins, and--of course--collect plenty of candy from their neighbors. They'll be surprised by this holiday's ancient origins and learn about the cultures behind the customs. Twenty of the most intriguing facts are supported by carefully researched explanations and vivid photographs. Two graphic organizers offer more essential information about this topic, a wonderful introduction to curricular cultural studies.

Many of us take the water that comes out of our faucets for granted. But have you ever wondered how water makes it to your house in the first place? Sometimes it travels for hundreds of miles, thanks to aqueducts! This volume takes readers on a journey to the ancient world to see how people created aqueducts to serve burgeoning civilizations. Readers will also discover that today's aqueducts are technological marvels crafted by scientists, engineers, and many other professionals. Diagrams and stunning photographs of aqueducts both ancient and modern are sure to dazzle readers. The text focuses on STEM skills and has been aligned with relevant curricular topics in both social studies and science.

Platinum is even rarer than gold, and that makes this metal just as precious. Besides a source of wealth, platinum is used to make jewelry, electronics, magnets, medicine, and other valuable objects. This remarkable element and important science concepts are explored throughout this book. Graphic organizers, colorful photographs, and fun fact boxes add support to the text.

Sewers might be a gross subject to study, but they also offer the perfect chance to comprehend important STEM skills and topics. Readers are sure to enjoy learning about sewers throughout the centuries--from the systems of the ancient Roman Empire to those in our very own neighborhoods. This volume addresses important scientists, engineers, and inventors who have made the unsavory job of removing waste from our lives a reality. Diagrams and photographs of sewer systems from the ancient world and those of today will help readers grasp the scientific concepts behind them. This book was designed with social studies and science curricula in mind, and focuses on essential curricular topics.

Bacteria are some of the smallest living things on Earth. They can live just about anywhere, from the hottest desert to the deepest ocean. Billions of bacteria even live on and inside our bodies. Many bacteria are helpful, but some cause deadly diseases. Inside this book, readers will view amazing close-up photographs as they learn about the history of microbiology and how to keep bacteria from making them sick. Fact boxes summarize interesting tidbits, also making it easy for report writers to find helpful information.

Discusses the Earth, what it's made of, and what surrounds it.

Discusses electricity, covering what it is and the different types of electricity.

This book is a great resource for anyone interested in the world of professional photography. Written in a clear and concise manner, the author provides detailed information on all aspects of a variety of career options -- ranging from travel photography and portrait photography to a photography career in the United States military.