Astronomic and atmospheric phenomena can be spectacular sights to behold. This set explains how comets, eclipses, the northern lights, and other phenomena occur, providing examples of each. Diagrams and graphic organizers present data in a way that makes it easy for readers to make connections. Fact boxes provide supplementary information. Readers will get excited to see the sky light up. Features include: Science content that meets the needs of elementary science curricula. Full-color photographs give readers an up-close look at dazzling phenomena. Supports the Next Generation Science Standards by introducing readers to Earth's systems, the atmosphere, and Earth's place in the universe.