Earth’s Rotation - DeRiemaker - Home



Background Information:Materials: large open space, teacher, students.Procedure:Students will form an ellipse around the teacher.Teacher will ask questions throughout the following steps to prompt responses from students (all of these questions and answers are to be written out in the analysis section of the field journal).Students will spin on their “axis” the direction that Earth spins on it’s axis.Students will be asked to lean at an angle that is equivalent to the tilt of the Earth on its axis.Students will again be asked to rotate on their axis.Students will be asked to show noon and midnight for North America if their nose represents the USA.Students will be asked to rotate around the teacher one full calendar year.Students will be asked to rotate around the teacher one “season” (a quarter year).Analysis:Procedure step #1: Why are you being asked to form an ellipse around the teacher? What do the students and teacher represent?Procedure step #3: What direction should all students be turning?Procedure step #4: What is the degree of tilt for Earth on its axis? Because Earth is tilted on its axis, this causes what phenomenon?Procedure step #5: What is the teacher looking for when she/he asks you to tilt and rotate on your axis?Procedure step #6: What is the position of student with respect to the teacher at noon? At Midnight? Procedure step #7: What should the rotation be to represent an entire year?Procedure step #8: What should the rotation be to represent one season change?Data:Copy figure 4.10 from your text book including all the side notes that describe the season, etc.Conclusion:Write down facts you have learned/researched about Earth’s tilt and rotational effects with respect to creating weather, seasons, biomes. ................
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