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Late Work Due 12/20/17

Late Work Due 12/20/17. If you don’t know where you stand then get your missing work turned in. 13 Days Remaining. Astro - Bellringer. How do greenhouse gases help the Earth’s atmosphere? If you understand the color of a star, what can you determine about the star? What are sunspots?

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Late Work Due 12/20/17

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  1. Late Work Due 12/20/17 • If you don’t know where you stand then get your missing work turned in. • 13 Days Remaining

  2. Astro - Bellringer How do greenhouse gases help the Earth’s atmosphere? If you understand the color of a star, what can you determine about the star? What are sunspots? What will be the final stage of life for our sun? Why can’t a star last forever?

  3. Group 1 sun

  4. Group 2 sun

  5. Group 3 sun

  6. Additional ?’s sun

  7. https://www.youtube.com/watch?v=DEw6X2BhIy8

  8. Star Light Evidence…… Brightness & color = where it is in its life cycle (its age) Color = temperature Composition (elements) = mass: different elements have different masses

  9. Solar System & Planets EQ: How do the components of our solar system interact?

  10. Gravity Nothing gets built without gravity Newton describes the Universal Law of Gravitation Greater the mass the greater the force Larger the distance between objects force decreases

  11. Solar System composition Solar system formation -planets, moons, star, asteroids, comets -Nebula Hypothesis Cloud of dust & gas (helium & hydrogen) formed spinning disk (solar nebula) Center gas formed sun Outer gas form small bodies (planetesimals) A. Solar System

  12. Gravitational Collapse A Pictorial History Condensation Interplanetary Cloud condensed Nebular Capture

  13. B. Observing the Solar System • Geocentric- earth at center (sun orbits earth) • 2. Heliocentric- sun at center (earth orbit sun)

  14. C. Planets 1. Revolution- movement around host star 2. Rotation – spinning on the axis of a planet as it moves around (revolves) its host star 3. Two types: Terrestrial (inner) & Jovian *Make a T-Chart: Terrestrial Vs. Jovian

  15. Get a white board, some dry erase markers with your desk partner. You may use the text book and your phone to complete the assignment.

  16. Planet Team Challenge • You are about to become an interstellar real estate agent! As part of your job you must create an exciting purchasing pitch that will entice your clients to buy your planet. Solar System

  17. Thoughts to Ponder: When thinking about what to suggest that the buyers take with them on their move and how they will survive consider the following questions... 1. What are the conditions that humans need to live?2. What is the planets temperature (day/night)?3. What is the quality of the atmosphere of the planet?4. What other conditions on the planet are harmful to humans? How could you use these to your advantage?5. What are the surroundings of the planet like? 6. Describe gravity on your planet? 7. How would humans navigate around planet? 8. Inside what kind of vessel or house would your buyers need to build--remember you must consider what the surface of the planet is made of.

  18. Mercury • One rotation takes 59 days. • One year is 88 days. • It has no moon or rings. • Mercury is the closest planet to the sun. • It looks a lot like our moon. Click here to learn about Mercury.

  19. a. Mercury- smallest planet, not much larger than the moon.

  20. Venus • One rotation takes 243 days. • One year is 224.7 days. • It has no moon or rings. • Venus is the second planet from the sun. • It is as dry as a desert and hotter than an oven.. Click here to learn more about Venus.

  21. b. Venus- “Earth’s Twin”, atmosphere is full of clouds & gives a yellow color.

  22. Earth • One rotation takes 24 hours. • One year is 365 1/4 days. • It has 1 moon and no rings. • It is the third planet from the sun. • Earth is mostly covered with water.

  23. c. Earth- only planet with known life

  24. MARS • One rotation takes 24.5 hours. • One year is 687 days. • It has 2 moons and no rings. • It is the fourth planet from the sun and the last of the inner planets. • Mars looks red because of rusty iron in its soil and red dust in its air.

  25. d. Mars- “red planet”, red color due to iron-rich rocks, large canyons suggest that water was present in the past.

  26. Jupiter • One rotation takes 9.8 hours. • One year is 12 earth years. • It has at least 16 moons and 2 rings. • It is the fifth planet from the sun and the first gas planet. • It has a great red spot of swirling gas.

  27. a. Jupiter- largest planet, contains the “Great Red Spot” (huge storm)

  28. Maybe ice on Europa?

  29. Saturn • One rotation takes 10.7 hours. • One year is 29.5 Earth years. • It has at least 17 moons and many rings. • Saturn is the sixth planet from the sun and the second gas planet. • Saturn’s rings are made of ice, rock, and dust.

  30. b. Saturn- rings made of small ice particles

  31. Uranus • One rotation takes 17 hours. • One year is 84 earth years. • It has at least 15 moons and 10 rings. • Uranus is the seventh planet from the sun and the third gas planet. • Uranus seems to rotate on its side.

  32. c. Uranus- rotates on its side

  33. One rotation takes 16 hours. • One year is 165 earth years. • It has 8 moons and 4 rings. • It is the eighth planet from the sun and the last gas planet. • Neptune is blue-green. Neptune

  34. d. Neptune- fastest winds in the solar system (1,200 mph)

  35. Pluto • Is it a planet? • One rotation takes 6 days. • One year is 248 earth years. • It has 1 moon and no rings. • It is the ninth, and last planet from the sun, but every 248 years Neptune orbits farther than Pluto. • Charon is Pluto’s moon.

  36. E. Pluto • Why Pluto is NOT a planet: a. A planet must be: 1.) in orbit around the Sun, 2.) large enough to have become round due to the force of its own gravity 3.) dominates the neighborhood around its orbit. • Pluto & its moon Charon

  37. What does the solar system look like from far away? NASA Figure • Sun, a star, at the center… • Inner Planets (Mercury, Venus, Earth, Mars) ~ 1 AU • They are all rocky planets… • Asteroid Belt, ~ 3 AU • Outer Planets (Jupiter, Saturn, Neptune, Uranus), ~ 5-40 AU • They are all gaseous planets.. • Pluto: odd ball planet,

  38. The Orbits of the Planets • Described based on work of Kepler • Use data from Brahe to create 3 planetary laws • #1 all planets orbit in an ellipse • Further away from your star the longer it takes to orbit the star

  39. Terrestrial and Jovian Planets Why?

  40. Gravitational Collapse Protosun Protoplanetary Disk Heating  Fusion Condensation (gas to solid) Sun Metal, Rocks Gases, Ice Accretion Nebular Capture Leftover Terrestrial Planets Jovian Planets Leftover Comets Asteroids The Nebular Theory* of Solar System Formation Interstellar Cloud (Nebula) *It is also called the ‘Protoplanet Theory’.

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