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ASTRONOMY TEST CORRECTIONS You have the opportunity to earn extra points towards your FINAL ASSESSMENT GRADE. This will be entered in a separate column from your actual test grade. In order to do this, you need to: 1) See me for the key to find out which questions you missed 2) For each question that you missed, answer the question given below. (I am not returning the actual test back to you since this is an exam used for multiple classes over multiple school years.) You must not only answer, but also support each question using full sentences (at least 2-3). 3) Turn in your answers with the answer sheet from your test 4) I will give you ½ point for every 1 test correction you make. You may not earn more than 70%. Due Date _____________________________________________ 1. 2. 3. 4. 5. 6. 7. 8. What is the nebular theory? What are 3 differences between the Terrestrial and Jovian planets? How does the tilt of our Earth’s axis affect the length of day? What are 3 topics that are studied in Earth Science? What is the visible surface of the Sun? Provide some details about this layer How does our Sun compare to other stars? Why are sunspots darker than other areas of the Sun? What elements are involved in fusion in our own Sun? Explain how this works 9. Explain how energy is created inside the core of the Sun 10. What portion of the Sun can only be seen during an eclipse? Provide some details about this layer 11. Explain what a solar flare is. 12. How do stars produce larger elements? 13. Where are elements heavier than Iron (Fe) created? 14. Why do astronomers use light years as a distance unit? 15. What is the most important factor that determines how long a star “lives”? 16. What measurement refers to a stars actual brightness? Explain how this is determined. 17. What is an H-R diagram? What information does it contain? 18. Explain how parallax is used to find the distance to nearby stars 19. How can 2 stars have the same absolute magnitude but different apparent magnitudes? 20. Why do we study Earth as a system? 21. What is the stage each star goes through before it begins fusion? 22. Stars eventually begin to “die” when they begin to build up which element? Why? 23. How often does the number of sunspots increase? Explain a little more about this pattern throughout the last several hundred years 24. Increased solar wind from the sun can cause ___________? 25. What is the big bang theory? 26. At which latitude does the amount of daylight vary the most? Why? 27. Why do we use models in Earth Science? 28. How can a scientific hypothesis become a theory? 29. What is solar wind made of? 30. Draw a diagram of how Earth would look relative to the Sun on the first day of Summer. 31. Complete the sentence: Because Earth is tilted ,____________________________. 32. Why does Michigan have several more hours of daylight in the summer rather than the winter? 33. Draw the Earth’s position relative to the Sun at the 4 different seasons. Include the tilt. 34. What can a star’s spectrum tell astronomers? 35. What does the Doppler effect tell astronomers about a star? 36. Define mass number. What can it tell you about an atom? 37. Define atomic number. What can it tell you about an atom? 38. How many protons are in Iron? 39. How many electrons are in Carbon? 40. How many neutrons in the most common isotope of Nitrogen?