Christine Taylor-Butler

Describes the origins of European exploration of the Americas, including the Vikings, the search for a new route to Asia, for gold, and for a Northwest Passage, and discusses the Lewis and Clark Expedition and modern explorers.

Explores the respiratory system, explaining why and how people breathe, how each organ works, and how certain diseases can influence respiration.

Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the properties of magnetism.

Describes experiments that can be performed using solar energy in order to learn about its properties, including how different colors absorb sunlight, if it cleans dirty water, and whether it can cook food.

With Safe Harbor under the control of a dangerous new leader, the stakes are higher than ever. Known as a "planet killer," Earth's largest supervolcano shows signs of erupting. Now the clock is ticking as the mission's timeline is reduced to only months. Ben and his friends are slammed into new roles as mission specialists and forced to complete their training as warriors in weeks instead of years. Their search for solutions takes them from a secret...