Chris Oxlade

Explores the geography, climate, wildlife, people, and culture of Africa. Examines how people live on this continent and includes color photographs, a glossary, and further reading sources.

"This book provides a simple and fun introduction to soil, discussing what soil is, how it is made and what we use it for. With the help of some Rock Solid! facts that provide cool examples, the book will show you how amazing soil can be: from making houses with mud bricks and how crops grow in volcanic soil to how tree roots can break up rock"--From the publisher's web site.

Introduces young scientists to ramps and wedges, with historical and contemporary examples, and step-by-step projects that range from the simple to the more challenging.

Explores the properties of matter and materials, and presents ten related experiments, step-by-step color photographs, a quiz with answers, a glossary, and further reading.

Introduces young scientists to springs, with historical and contemporary examples, and step-by-step projects that range from the simple to the more challenging.

Introduces young scientists to the lever, with historical and contemporary examples, and step-by-step projects that range from the simple to the more challenging.

Introduces young scientists to pulleys, with historical and contemporary examples, and step-by-step projects that range from the simple to the more challenging.