By Rebecca L. Johnson
Organic Molecules: The Molecules of Life introduces students to the four major kinds of molecules that make up living things. It then guides them to understanding the important roles that these organic molecules play in all living things. Students learn that just six chemical elements make up most organic molecules and that among them, carbon plays a pivotal role. At the end of each two-page spread, a brief statement called The Bottom Line reinforces students’ understanding by summing up the key ideas about organic molecules covered in those pages.