Lesson 16-1:
Motions of the Earth
Common Muscle and Bone Injuries
Diseases of the Bones & Muscles
. . . .
  • At the end of the lesson, you should be able to:
  • Define rotation and revolution
  • Explain how Earth rotates and revolves around the sun to explain day and night and the occurrence of seasons
  • Explain the effects of the tilting of Earth on its axis as it revolves around the sun