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Download 1 DS 3.10 Grade 9 Review
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Grade 9 Astronomy Test Review Concepts and terms to review: □ astronomy □ celestial objects □ luminosity □ sun □ moon □ planet □ star □ asteroid □ comet □ gas giant □ solar system □ nuclear fusion □ astronomical unit (AU) □ light-year □ binary system □ supernova □ nebula □ dwarf star □ hydrogen & helium □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ black hole constellation rotation revolution orbit satellite star cycle moon phases retrograde motion atmosphere heliocentric geocentric parts of the Sun solar wind electromagnetic spectrum (light, infrared, UV, etc…) aurora borealis □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ Doppler effect colour of stars star spectra Hertzprung-Russell diagram solar eclipse lunar eclipse ocean tides the environment of space risks of space travel benefits of space travel technology in space types of galaxies neutron star big bang theory galaxy Answer the following questions in full sentences: 1. Define the term non-luminous. Give an example of a non-luminous object in our solar system. 2. Explain the difference between the terms rotation and revolution. 3. What is the Earth’s rotation and revolution? 4. What determines the seasons on Earth? 5. What determines day length on the Earth? 6. STATE 3 observations that ancient peoples made to discern that the Earth is not flat. 7. Name 3 constellations. 8. How many planets are there? Name them in order. Write down a sentence that helps you remember the order of the planets. 9. Why is the Earth the best planet to sustain living things? 10. Which planet is no longer really considered a planet? Why? 11. Draw and label a picture of the sun and explain the importance of the following: corona, chromosphere, solar flare, sunspot. 12. What are the two most common elements on the Sun? 13. Explain a lunar and solar eclipse. 14. What is nuclear fusion? 15. What does the colour of a star indicate? 16. What is a galaxy? 17. Name our galaxies and the group it is part of. 18. Describe 3 galaxy shapes. 19. Describe the 3 main stages of the formation of the solar system. 20. Explain the term red shift. What does this indicate about the universe? 21. Describe the Big Bang theory. 22. Be able to classify stars by colour and absolute magnitude – know where the different types of stars are locate on The Hertzsprung-Russell Diagram. 23. Given the following elemental spectra, identify and list ALL of the elements present in each of the three mystery stars shown below.