Transcript File
Unit 3 Test Review 1. Nuclear Fusion is the process that fuels stars 2. Fusion is combining 2 small elements to make a bigger one 3. Fission is splitting a large element to make 2 smaller ones 4. Stars are mostly hydrogen gas 5. Hydrogen and helium are the most abundant elements in the universe 6. Supernova = any element above #27 on the periodic table. 7. Fusion inside a star = any element #4-26 on the periodic table. 8. Big Bang = #1-3 on the periodic table (hydrogen, helium, lithium) 9. If you fuse nitrogen(7) and carbon(6) then aluminum(13) is created 10. Massive stars have a shorter life span and are less stable (main sequence stars are stable and live much longer) 11.Protostar massive star super red giant supernova explosion neutron star OR black hole 12.Protostar main sequence star red giant planetary nebula white dwarf 13. Blue or white means the star is hot 14. Red means the star is cool 15.A dwarf planet is a planet that hasn’t cleared the space around itself in its orbit 16.The Kuiper belt is past Neptune 17.The asteroid belt is between Mars and Jupiter 18.An asteroid is a rocky object that orbits the sun 19.A comet is an icy object that orbits the sun 20.A meteor is an object made of rock and metal that orbits the sun 21.A meteorite is a piece of a meteor that hits the earth 22.The moon goes through phases because we only see the parts the sunlight hits 23.Abiotic factors are non-living factors that life depends on 24. Sunlight, water, dirt, rocks, atmosphere, gases 25.Biotic factors are living or once living factors that living things depend on 26. Other humans, plants, animals, food 27. Liquid water, temperature, energy, nutrients, and an atmosphere 28.A habitable zone is the distance from the sun where a planet is the right temperature to support life 29. Mercury: extreme temperatures, no atmosphere Venus: very thick atmosphere, hot, volcanoes Mars: very thin atmosphere, cold, dry ice ice caps Jupiter: Thick atmosphere made of hydrogen and helium, cold Saturn: Thick atmosphere made of hydrogen and helium, cold Uranus: Thick atmosphere made of hydrogen, helium and methane, cold Neptune: Thick atmosphere made of hydrogen, helium and methane, cold 30. The solar system is 4.6 billion years old and the earth is 4.5 billion years old. 31. The ozone layer reflects harmful UV radiation 32. Greenhouse gases trap heat in the atmosphere 33. The magnetic field deflects harmful solar winds to protect earth’s atmosphere 34. Earth’s atmosphere is mostly Nitrogen gas 35. Venus’ atmosphere is mostly Carbon Dioxide gas 36. Mars’ atmosphere is mostly Carbon Dioxide gas 37. Venus is hotter than Mercury even though it isn’t as close to the sun because Venus has lots of greenhouse gases trapping in the heat 38. Scientist think they will probably find single celled organisms on another planet, not human type life forms 39. Terrestrial planets are rocky and gas giants are made of mostly gas and liquid 40. Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune 41. A planet hit earth and the moon formed out of the debris 39. A. 1st Quarter B. Waxing Crescent C. New Moon D. Waning Crescent E. 3rd Quarter F. Waning Gibbous G. Full moon H. Waxing Crescent 43. Alpha centauri B 44. Supergiant 45. White dwarf 46. Giant 47. Sirius B 48. Betelgeuse 49. None 50. None