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Introduction to Astronomy

Introduction to Astronomy. 4.26 and 4.29. Warm Up 5. 19 & 5.20. 1. Describes what happens to the usable energy available as you move up the energy pyramid. a. it increases b. it decreases c . it stays the same d. it increases then decreases

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Introduction to Astronomy

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  1. Introduction to Astronomy 4.26 and 4.29

  2. Warm Up 5. 19 & 5.20 1. Describes what happens to the usable energy available as you move up the energy pyramid. a. it increases b. it decreases c. it stays the same d. it increases then decreases 2. _______________ is part of the saltwater biome. a. Atlantic Ocean b. Lake Wylie c. Mississippi River d. Tundra 3. If a relationship is parasitic (or parasitism), _________________________________. a. One organism benefits while the other remains unchanged b. Both organisms benefit c. Both organisms are harmed d. One organism benefits while the other is harmed

  3. The Moon 5.19 & 5.20

  4. Moon Facts Earth’s natural satellite. 240,000 miles from Earth. - would take a jet 20 days to reach the moon - takes a space shuttle 3 days 1% of Earth’s mass 27% of Earth’s diameter Near/light side of the moon always facing Earth (hence the expression “dark side of the moon”)

  5. Moon Facts Continued Light areas = lunar highlands (older rock) Dark areas = maria (younger rock) Made of layers: - core, mantle, crust Probably formed from a giant collision (page E56-E57) The Moon’s gravitational pull on the Earth causes tides.

  6. Moon Vocabulary Eclipse – an event during which one object in space casts a shadow onto another. Lunar eclipse - when the Moon moves through Earth’s shadow Solar eclipse – when the Moon’s shadow crosses Earth

  7. 2.3 Bookwork Read pages E59-E66 in your McDougal Book. Answer the 2.3 Review questions 1-6 on page E66 in your notebook .

  8. Video: “The Universe: The Phases of the Moon”

  9. Vocabulary • Orbit – the path of an object in space as it moves around another object due to gravity • The moon revolved in an orbit around earth • Solar System – the Sun and its family of orbiting planets, moons, and other objects • Galaxy –millions or billions of stars held together in a group by their own gravity. • Universe- Space and all the matter and energy in it.

  10. Arrange the four terms in the pyramid from smallest to largest Solar System Galaxy Earth Universe

  11. National Geographic Video “A Traveler’s Guide to the Planets” http://www.youtube.com/watch?v=sxno39vLfZE

  12. Ancient Greeks Ancient Greeks thought our solar system was geocentric (or earth centered) Aristotle and Ptolemy

  13. Our Solar System Heliocentric – sun-centered Rotation – A body spinning on its axis. Earth takes 24 hours to make one full rotation. The moon takes approximately 27 days to make one full rotation. Revolution – When a planet or body travels around another object. The Earth takes approximately one year to revolve around the sun. Rotation Revolution

  14. Our Solar System My Very Educated Mother Just Served Us Noodles

  15. Planetary Facts

  16. Impact Simulation Lab Objective: The purpose of this experiment is to simulate what happens when objects collide with the moon. Hypothesis:

  17. Materials: plastic tub flour Ruler spoon object #1 object #2 object #3 object #4 object #5

  18. Procedure: Place several inches of flour into a large plastic tub. Select 5 objects that you will drop into the container and note their size and shape in your data table. Smooth out the flour with your spoon. Drop one object at a time noting its height, angle it’s dropped from, and the force from which it is dropped. Take notes in your data table about what the impact in the flour looks like after each object is dropped.

  19. Data:

  20. Conclusion: Lab report is due next class period!

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