Explain the history of astronomy.

Explanation should include information regarding

• the celestial sphere
• the Greek Earth-centered model
• Ptolemy’s model
• Copernicus and the sun-centered model
• Kepler’s laws of planetary motion
• Galileo and the telescope
• Newton’s laws of motion and gravity
• Einstein’s theory of relativity.

Process/Skill Questions:

• What is Ptolemy’s model?
• What are Kepler’s laws of planetary motion?
• What is the celestial sphere?
• Where is Earth located?