Presentation on theme: "7.4 Meet Your Solar System (Pages 291-296) Homework: Page 296 # 1-3, 6, 7 Key Concepts: (Page 296)"— Presentation transcript:
7.4 Meet Your Solar System (Pages ) Homework: Page 296 # 1-3, 6, 7 Key Concepts: (Page 296)
Two models of the solar system are the geocentric model and heliocentric model. The planets share many similar characteristics, but they also have many differences. The inner, or terrestrial, planets are rocky and small. The outer planets, or gas giants, are made of gases and are huge. The astronomical unit is defined as the average distance between Earth and the Sun.