Combines facts with photography of volcanoes and earthquake-affected regions, introducing young science enthusiasts to such topics as underwater volcanoes and plate tectonics while offering insight into the world-changing power of natural disasters.
Details the various systems of currency human beings have used throughout history. Examines the transition from the trading of goods to a currency-based economy and includes color photographs, a glossary, and further reading sources.
Contains dozens of full-color photographs and informative text depicting all aspects of volcanoes and earthquakes. Discusses their cause, power, and destruction. Includes an interactive glossary and further resources.
Describes HIV/AIDS, its symptoms, current treatments, and preventative measures, and covers coping strategies and ways to support a friend or family member who has contracted this condition.
Describes HIV/AIDS, its symptoms, current treatments, and preventative measures, and covers coping strategies and ways to support a friend or family member who has contracted this condition.
