Physical and biological factors affect everyday living. Scholars explore electromagnetic forces, motion, the rock cycle, and geological changes. They examine cells as the building blocks of life and how organisms reproduce using images...

How diverse are living things? Individuals explore topics such as cells as the foundation for life, cell division and genetics, molecular biology, and animal reproduction using an open resource Biology textbook. They learn key terms...

White Fang gets into the mind of a wild wolfdog as people domesticate him. The story tells of trials with violent animals and humans alike. White Fang captures readers' hearts as the pup separates from his family.