The 16 lessons in this module introduce students to the solar system through an investigation of the planets and the sun. Students explore the earth/sun relationship in terms of the day/night cycle and the year cycle. As well, students investigate the characteristics of the moon, its phases, and its eclipses. Students also explore gravity and the constellations, and the history of space exploration. Also included: materials lists activity descriptions questioning techniques activity centre and extension ideas assessment suggestions activity sheets and visuals The module offers a detailed introduction to the Hands-On Science program (guiding principles, implementation guidelines, an overview of the skills that young students use and develop during scientific inquiry), a list of children's books and websites related to the science topics introduced, and a classroom assessment plan with record-keeping templates.