Face the center lamp. Extend your arms so that your right hand is toward the sun, your left hand pointing away. Before going on to Part II, ask the instructor or lab assistant to check your answers to this part. Be prepared to demonstrate the sunset and sunrise positions , and know which way is east and which way is west for both. Rotation refers to the turning of a body around its own axis .
Revolution refers to the orbit of one body around another .
The diagram below shows the Earth and Moon as viewed from space far above the north pole of the Earth. Keep the marked side toward you at every position. Fill in the table below for each position as numbered in the diagram above. Partner A will have to walk around partner B, keeping his or head above the moon as the moon completes one revolution around the earth. Partner B may have to squat while pivoting.