cycles Author:Carl B. Smith Cycles are circular patterns. When a chick hatches from an egg, grows into a chicken, lays its own egg, and a baby chick hatches from that egg, that is a cycle. ..... In "Cycles," you will learn how chicks hatch, and you will read some thoughts on why dinosaurs became extinct. .... You will find out how curiosity will help you learn things on ... more »your own, ...« less