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Components of Space

Components of Space. Universe. All of space that includes many galaxies. Galaxy. A system of stars mixed with gas and dust. We are part of the Milky Way Galaxy, which is a spiral galaxy. The next closest galaxy is called Andromeda. There are approximately 200 billion stars in our galaxy.

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Components of Space

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  1. Components of Space

  2. Universe • All of space that includes many galaxies

  3. Galaxy • A system of stars mixed with gas and dust. • We are part of the Milky Way Galaxy, which is a spiral galaxy. • The next closest galaxy is called Andromeda. • There are approximately 200 billion stars in our galaxy.

  4. Solar System • The solar system includes the sun and all the bodies that orbit around it.

  5. Planet • A spherical body that orbits around the sun and has its own gravity

  6. Put the following in order from largest to smallest: Solar System • Universe • Galaxy • Planet Universe Galaxy Solar System Planet

  7. Inner Planets • These are known as terrestrial planets because they are dense and rocky • Mercury • Venus • Earth • Mars

  8. Asteroid & Asteroid Belt • Asteroid – A large rock which is smaller than a planet and orbits the sun • Asteroid Belt – asteroids that revolve around the sun between the orbits of Mars and Jupiter

  9. Outer Planets • These are known as the gas giants because they are very large and mostly made of gas • Jupiter • Saturn • Uranus • Neptune

  10. Dwarf Planet - Pluto • Pluto is now classified as a dwarf planet because it is very small

  11. Solar System Diagram

  12. Moon • A naturally occurring satellite orbiting around a planet • Some planets have more than 1 moon

  13. Star • A massive ball of luminous gas that are held together by their own gravity • A star creates its own light • The life cycle of a star is determined by its mass.

  14. Constellation • A group of stars that form a pattern in the sky

  15. Comet • An icy body that releases gas or dust and has a long oval orbit

  16. Meteoroids & Meteor & Meteorites • Meteor – a meteoroid that enters Earth’s atmosphere and completely burns • Meteoroid – a chunk of rock or dust that usually comes from comets or asteroids • Meteorite – a small rock that lands on earth from space

  17. Additional Links • http://www.kidsastronomy.com/solar_system.htm • http://science.nationalgeographic.com/science/space/solar-system • http://www.nasm.si.edu/research/ceps/etp/etp.htm

  18. Ticket Out Which planets are terrestrial and which planets are gas planets?

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