Contact your school-based technology specialist for assistance. Students compare properties of the Sun, Moon, and Earth, including temperature and composition. Students learn what a day is by stepping through a 24-hour cycle, two hours at a time, while watching the Sun traverse the sky from a vantage point in a Chicago park. At the same time, they see how Chicago moves on a rotating globe through the Sun's light and into the shadow of night. In this investigation, students collect data and analyze a line graph of the temperature in a city in the northern hemisphere at four times of the year.
Students then find similar data for a city in the southern hemisphere.
They see the inverse temperatures in the two places and relate this data to Earth's tilt.