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Planets

Planets. Planets. Planet Groups. N. The Outer Planets Planets far from the Sun Jupiter Saturn Uranus Neptune. The Inner Planets Planets closest to the Sun Mercury Venus Earth Mars. Pluto???. Mercury. N. Planet closest to the Sun Smallest Terrestrial Planet

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Planets

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  1. Planets

  2. Planets

  3. Planet Groups N The Outer Planets Planets far from the Sun • Jupiter • Saturn • Uranus • Neptune • The Inner Planets • Planets closest to the Sun • Mercury • Venus • Earth • Mars Pluto???

  4. Mercury N • Planet closest to the Sun • Smallest Terrestrial Planet • Has no moons of its own • Has extreme temperatures because • 1) ____________________________ • 2) ________________________

  5. Venus N • Can be seen in the west just after sunset or in the morning sometimes. • Is also called the “evening or morning star” even though it is not a star. • Similar to Earth in size and mass and is called the Earth’s twin • Has the hottest surface of all the planets because of the greenhouse effect

  6. ROTATION The Earth spinning around its axis Takes 1 day (24 hrs) Causes days and nights REVOLUTION The Earth moving around the Sun Takes 1 yr (365 days) Causes seasons Earth’s Motion through space

  7. Earth’s Motion through space What causes the seasons? • The tilt of the Earth causes seasons. http://www.teachersdomain.org/resource/ess05.sci.ess.eiu.seasonsgame/

  8. Which of the following diagrams shows the correct seasonal orientation of the Earth as it rotates around the Sun?

  9. Phases of the moon N • New moon None of the moon is visible • Crescent Moon Less than half of the Earth facing side of the moon is visible • Quarter Moon Exactly half of the Earth-facing side of the moon is visible • Gibbous Moon More than half of the Earth-facing side of the moon is visible • Full Moon The entire Earth facing side of the moon is visible. High tides occur during Full Moons

  10. Waxing & Waning N • http://www.teachersdomain.org/resource/ess05.sci.ess.eiu.mphase/ • If the part of the moon that we see from the Earth is INCREASING, we say the moon is WAXING. • If the part of the moon that we see from the Earth is DECREASING, we say the moon is WANING.

  11. Mars N • Called the “Red planet” due to the iron rich rock (Rusty) • Mars is quite cold due to • 1) Its thin atmosphere • 2) Its distance from the Sun

  12. Outer Planets – The gas giants N • All the gas giants have thick atmospheres • Outer layers of the gas giants are extremely cold due to the distance from the Sun • All the gas giants have moons • They also have RINGS – thin disks of small particles of ice and rock.

  13. Jupiter The largest and most massive planet Has 4 moons Saturn The 2nd largest planet Has the most spectacular rings around it Jupiter and Saturn N

  14. Uranus Looks blue-green in color because of the methane in the atmosphere Neptune Is a cold, blue planet Its atmosphere contains visible clouds. Uranus , Neptune & Pluto N Pluto – A Dwarf Planet Because it has not cleared out the neighborhood around its orbit. Has a solid surface Is smaller & denser than the outer planets

  15. Answer these questions • 1) Which planets make up the inner planets? • 2) Which planets make up the outer planets? • 3) Name 4 characteristics of the outer planets? • 4) Give two differences between rotation and revolution. • 5) Name the different phases of the moon and write a sentence on each. • 6) What is the order of planets? • 7) Come up with an acronym for YOU to remember the order of the planets.

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