The document discusses key concepts about our solar system including rotation, revolution, and the phases of the moon. It provides details on the length of days and years on each planet. The causes of seasons on Earth are explained. Characteristics of each planet and dwarf planets are outlined.

1. Spaceman Joe’s Cool Adventures Learning How Our Solar System Works!

3. Rotation of the Earth

4. How Long is a Day on Each Planet? (Rotation) Mercury – 59 Days Venus- 243 Days Earth- 24 Hours Mars- 24 ½ Hours Jupiter- 10 Hours Saturn- 11 Hours Uranus- 17 Hours Neptune- 16 Hours

5. Revolution of the Earth

6. How Long is a Year on Each Planet?(Revolution) Mercury-88 Days Venus- 225 Days Earth-365 ¼ Days Mars- 687 Days Jupiter- 12 Years Saturn- 30 Years Uranus – 84 Years Neptune – 165 Years

10. Phases of the Moon

13. New Moon Waxing Crescent Moon First Quarter Moon . Waxing Gibbous Moon Full Moon

14. Waning Gibbous Last Quarter Waning Crescent

17. Let’s Review!

19. Our Solar System

31. Our Star, The Sun

33. Sunspots

35. And now there are eight !

37. 2003 UB313 is now known as Eris

39. Mercury —closest planet to the sun. No atmosphere so very hot or very cold. Has craters and travels faster than any other planet. It only takes Mercury 88 days to make one revolution.

43. Mars-- largest volcano in the solar system Olympus Mons and may have had water in the past. Has the deepest valleys in the solar system. Has polar ice caps. Has 2 moons.

57. 2003UB313 (Eris)and its Moon

58. Asteroid Ceres