2. Ms. Barfield 5th Grade May 26, 2015 Science- Strand 6, Concept 3 PO 1 and PO 2 THE SOLAR SYSTEM

3. PLANETS- INNER V. OUTER There are 8 planets recognized by the International Astronomical Union (IAU) in our solar system (“Solar System,” 2014). Inner PlanetsOuter Planets MercuryJupiter VenusSaturn EarthUranus MarsNeptune Helpful website on this topic: https://solarsystem.nasa.gov/planets/index.cfm https://solarsystem.nasa.gov/planets/index.cfm

4. INNER AND OUTER PLANETS VIDEO (Beckman, 2013)

5. MERCURY Planet closest to the sun 1 st planet in the solar system Smallest planet (NASA, 2015) Surface: solid and cratered Kind of like our moon! Atmosphere: thin, mostly full of oxygen, sodium, hydrogen, helium, and potassium (NASA, 2015) Moons?: None Rings?: None (NASA, 2015)

6. VENUS Planet 2 nd closest to the sun 2 nd planet in the solar system Venus is just a little smaller than Earth (NASA, 2015) Surface: cratered and MOST volcanic planet Atmosphere: thick and toxic! Mostly made up of carbon dioxide and nitrogen. (NASA, 2015) Moons?: None Rings?: None (We will have separate lessons about Earth) (NASA, 2015)

7. MARS Planet 4 th closest to the sun Mars is the most similar to Earth! It has “seasons, polar ice caps, volcanoes, canyons and weather” (NASA, 2015) It could not support life mostly due to the thin atmosphere. Surface: dusty and rocky Atmosphere: thin, mostly made of carbon dioxide and nitrogen (NASA, 2015) Moons?: 2 Phobos and Deimos (NASA, 2015) Rings?: None (NASA, 2015)

8. JUPITER First of the Jovian (gas giant) planets! 5 th planet from the sun *between Mars and Jupiter there is an asteroid belt. Surface: Gaseous (not solid) Atmosphere: mostly hydrogen and helium, “contains pastel-colored clouds” (“Solar System,” 2014, para. 7) Moons?: total of about 67! (NASA, 2015) Rings? Yes Fun fact: There is a storm called “The Great Red Spot” on Jupiter that has been raging for over 300 years! (Kte’pi, 2014, para. 5).

9. SATURN 6th planet from the sun Surface: Gaseous (not solid) Atmosphere: mostly hydrogen and helium Moons?: Saturn has about 62 known moons (NASA, 2015) Some of the main ones are: Titan, Rhea, and Phoebe (“Saturn, 2015). Rings? Yes Saturn has the most glorious ring system out of all the planets! Helpful website: http://saturn.jpl.nasa.gov/science/index.cfmhttp://saturn.jpl.nasa.gov/science/index.cfm (NASA, 2015)

10. URANUS 7 th planet from the sun Surface: It is an ice giant, so it is very icy It does have water but does not support life as we know it. Atmosphere: mostly hydrogen and helium, but it also has some methane (NASA, 2015) The methane gives Uranus its blue tint Moons?: Uranus has 27 moons (NASA, 2015) Rings? Yes The rings are very faint compared to the rings of Saturn. Fun fact: Uranus is that only planet that rotates on its side! (NASA, 2015)

11. NEPTUNE (NASA, 2015)

12. REFERENCES Arizona Department of Education. (2015). K-12 Standards. Retrieved May 25, 2015, from http://www.azed.gov/standards-practiceshttp://www.azed.gov/standards-practices Beckman, E. (2013). Inner and Outer Planets. [video file]. Retrieved May 27, 2015, from https://www.youtube.com/watch?v=3C7nr8GXGP4https://www.youtube.com/watch?v=3C7nr8GXGP4 Kte’pi, B. (2014). Jupiter. Salem Press Encyclopedia. NASA. (2015). Planets. Retrieved May 27, 2015, from https://solarsystem.nasa.gov/planets/index.cfm https://solarsystem.nasa.gov/planets/index.cfm Neptune Facts - Interesting Facts about the Planet Neptune. (2015). Retrieved May 28, 2015, from http://space-facts.com/neptune/ Saturn. (2014). Funk & Wagnalls New World Encyclopedia, 1p. 1. Solar System. (2014). Funk & Wagnalls. New World Encyclopedia, 1p. 1.