21. Our Solar System Mercury Venus Earth Mars Jupiter Uranus Neptune Saturn

22. Our Solar System The Solar System is the sun together with the eight planets and all other celestial bodies that orbit the sun. Remembering the order of the planets in our Solar System: Everything in the Solar System orbits or revolves around the Sun in a counter-clockwise direction. The Sun contains around 98% of all the material in the Solar System The Solar System is estimated to have formed between 4.53 and 4.58 billion years ago. M other A R S M y E R C U R Y V ery E N U S E xcellent A R T H J ust U P I T E R S erved A T U R N U s R A N U S N achos E P T U N E

23. Jesse Lloyd Steven Shablack For Science subject Gov. Ferrer Memorial High School Annex San Francisco, Gen. Trias, Cavite