Focuses on worms and discusses their physical characteristics, diet, defenses, habitats, food webs, and importance to the ecosystem. Includes color photographs, fact boxes, and a glossary.
Introduces readers to soil, discussing where it comes from, how it is made, what types exist, and what we it for. Includes informative text, color photographs, a glossary, and a list of resources.
"Learn about the ways dirt and soil have been used by humans over the centuries, from cave paintings to crop farming, and the exciting prospects for dirt and soil we may see in the future."--Provided by publisher.