What happens in space has an influence on our lives. As Earth moves around the sun, the seasons on Earth change. The movement of the moon affects the tides in Earth's oceans. In this book, readers explore the cycles in the space that most affect us and the space science taught in upper elementary science classes. Accessible language and simple explanations make this the perfect introduction to Earth's cycles for readers struggling with traditional textbooks. Colorful photographs, fact boxes, and graphic organizers add interest to the text.