Books with author Christa Petersen

This title introduces young readers to gold, the metal that can stay shiny for thousands of years. Learn how gold is formed and where it is found. Historical and modern mining methods are detailed, including the discovery of kimberlite pipes. The many uses of gold are examined, from industrial applications in products such as electronics to illuminated manuscripts and space telescopes. See how artisans such as goldsmiths and lapidaries use gold to create beautiful and useful jewelry. Finally, a list of tools and tips will set young rock hounds up to unearth their own treasures. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

Study Soils introduces readers to what makes up soil, from humus and plants and animals to water and air. Learn how weathering, erosion, parent material, decay, bacteria, organic matter, climate, and time contribute to soil formation. A geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, and an index. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

Examine Minerals introduces readers to what minerals are, how they form, and how we use them today. Learn how to identify minerals, including color, luster, streak, fracture, hardness, specific gravity, magnetism, and fluorescence. A geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, and an index. Aligned to Common Core Standards and correlated to state standards.Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

Grab a front-row seat to your favorite sports league. Season Ticket uses engaging and informative storytelling to take readers into the past, present, and future of the NBA, NFL, NHL, and MLB. With chapters exploring historic moments, game-changing figures, todays most exciting superstars, and other league dynamics, Season Ticket is your all access pass to sports!

Jewelry, smartphones, and burn cream. What could these things possibly have in common? They all contain components that come from the earth! The Earth's Treasures series encourages readers to grab their rock hammer, don their safety glasses, and discover the wonders of Earth science. Readers will discover how these treasures form, where they are located, and how to find some on their own. Along the way, they will learn how each treasure is used, from lapidary art, to industrial applications, and medical technology. Sidebars introduce bonus information such as equipment and safety tips for rock hounds, a birthstone gallery, and the layers of the earth. Big, full-color photographs of rocks, gems, and minerals will dazzle the reader. Bolded glossary words and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

Just 150 years ago, many people refused to believe that snow could be found near the equator in Africa. Today, the white peak of Kilimanjaro is recognizable to people around the world. Its three volcanic peaks tower above the surrounding grasslands, forming the largest mountain in Africa. Each year, more than 35,000 people challenge themselves to climb Kilimanjaro. They hope to stand on the glacier-capped summit, far above the clouds, and know they have persevered. In these pages, explore the natural and human history of this great mountain, and discover what it takes to reach the top.