Earth's lithosphere is constantly in flux. Some changes happen suddenly and dramatically, while others occur cumulatively over millions of years. Day in and day out, the processes of weathering, erosion, and deposition shape our magnificent world. Learn how by reading this fascinating book.
"Psychologists have long tried to understand what motivates behavior. Why does one student spend hours studying for a test while another does not? Today it is widely accepted that motivation involves a mix of constantly changing factors--essentially ensuring that motivation and behavior will vary in unpredictable ways"--Provided by the publisher.
Word-based brief stories set in locations across the country, puzzles, trivia, and informational sidebars are used to break down spelling and word-use basics in an entertaining way to help young readers improve their spelling and word skills.
