Students learn how Earth's tilt and orbit around the Sun affect climate/weather and cause the four seasons of the year. They read passages, work on diagrams, and complete worksheets. Links to two videos reinforce the concepts. Finally, an open-ended science quiz asks them to explain what they have learned. This resource also introduces significant lines of latitude (Arctic Circle, Tropic of Cancer, equator, Tropic of Capricorn, and Antarctic Circle); three major climate zones (polar, temperate,