Contents -- Acknowledgments -- Introduction -- Safety in the Classroom Practices -- Standards Organizational Matrix -- Activities at a Glance -- Activity 1 Planner -- Activity 1-Measuring the Moon Indirectly -- Activity 2 Planner -- Activity 2-Light Year as Distance -- Activity 3 Planner -- Activity 3-Solar System Scale -- Activity 4 Planner -- Activity 4-The Speed of Light -- Activity 5 Planner -- Activity 5-How Far to the Star? -- Activity 6 Planner -- Activity 6-The Formation of the Solar System -- Activity 7 Planner -- Activity 7-Habitable Zone -- Activity 8 Planner -- Activity 8-The Greenhouse Effect -- Activity 9 Planner -- Activity 9-Creature Feature -- Activity 10 Planner -- Activity 10-Reasons for the Seasons -- Activity 11 Planner -- Activity 11-Phases of the Moon -- Readings -- 1-Angular Diameters -- 2-What Is a Light Year? -- 3-Hubble SpaceTelescope -- 4-Scale Measurements -- 5-The Goldilocks Effect: Earth Is Just Right -- 6-The Parallax Effect -- 7-Earth as a System -- 8-Global Warming -- 9-The Water Cycle -- 10-The Greenhouse Effect -- 11-The Coming Climate Crisis? -- 12-Reasons for the Seasons -- 13-Phases of the Moon -- Resources -- About the Authors -- Index.