Our planets

• 1. Mercury
  2. venus
  3. earth
  4. mars ( terrestrial planets: made of iron/rock)
  5. Jupiter
  6. saturn
  7. uranus
  8. neptune ( gas giants: mostly liquid with a solid core)
• Our plants our held in place by gravity
• They follow elliptical orbits around the sun
• The further a planet is from the sun, the longer it takes to complete one orbit