CSET Science: Subtest I 100% SOLUTIONS

CSET Science: Subtest I 100% SOLUTIONS What are the three shapes galaxies take? a. spiral, elliptical, irregular b. irregular, spiral, flat c. elliptical, irregular, pancake shaped d. spiral, circular, elliptical - ANSWER A Which type of galaxy do astronomers believe is very evolved? a. elliptical b. spiral c. barred d. irregular - ANSWER A In which type of galaxy are the stars are in random orbit instead of rotating? a. Spiral b. Pancake c. Elliptical d. Barred - ANSWER C What do astronomers believe about all the structures of the cosmos we see today? a. That they appeared immediately after the Big Bang. b. That they began as small fluctuations or changes in the density in small areas of the universe. c. That the structures are made entirely of dark matter. d. That the structures are never changing. - ANSWER B Which planet is the smallest in the solar system? a. Mercury b. Venus c. Both Mercury and Venus d. Earth e. Mars - ANSWER A Which of the planets rotates backwards? a. Venus b. Earth c. Mars d. Both Venus and Earth e. Mercury - ANSWER A Which of the inner planets is the hottest? a. Both Mercury and Venus b. Venus c. Earth d. Mars e. Mercury - ANSWER B Which of the planets has a large satellite? a. Mars b. Earth c. Mercury d. Venus e. Mars and Earth - ANSWER B What are the planets in order from the sun? a. Earth, Mars, Venus, Mercury b. Venus, Earth, Mercury, Mars c. Mercury, Venus, Earth, Mars d. Venus, Mercury, Earth, Mars e. Mars, Earth, Venus, Mercury - ANSWER C Which planet is known for its rings? a. Pluto b. Uranus c. Neptune d. Saturn e. Jupiter - ANSWER D Which planet is known as the blue planet? a. Pluto b. Saturn c. Neptune d. Uranus e. Jupiter - ANSWER C What are the four outer planets in order from the sun? a. Jupiter, Saturn, Uranus, Neptune b. Uranus, Neptune, Saturn, Jupiter c. Neptune, Uranus, Saturn, Jupiter d. Jupiter, Saturn, Neptune, Uranus e. Saturn, Jupter, Neptune, Uranus - ANSWER A Which planet is tipped on its side and spins nearly horizontally? a. Jupiter b. Saturn c. Neptune d. Uranus e. Pluto - ANSWER D Which former planet is now considered to be a dwarf planet? a. Neptune b. Jupiter c. Uranus d. Titan e. Pluto - ANSWER E In what decade was Pluto's designation as a planet first called into question? a. The 70's. b. The 60's. c. The 90's. d. It was never called into question. e. The 80's. - ANSWER A Why was Pluto ultimately reclassified as a dwarf planet? a. Due to the discovery of Ceres. b. Because it was made of only gas. c. Due to the discovery of Eris. d. Due to the discovery of asteroids. e. Because it was so small. - ANSWER C What is the IAU's definition of a dwarf planet? a. A celestial body in direct orbit of the sun that is massive enough to form an ellipsoid shape from its gravitational force, but has not cleared its neighborhood from other objects. b. Any object that isn't big enough to be rounded by its own gravity. c. Small rocky objects with gravity. d. Bodies large enough to have cleared the neighborhood of their orbit. e. A celestial body that orbits another celestial body. - ANSWER A Which dwarf planet does not reside in the Kuiper belt? a. Eris b. Haumea c. Ceres d. Pluto e. Makemake - ANSWER C How many dwarf planets do astronomers believe they will find in the solar system in the future? a. Over 10 b. Over 1000 c. Over 1,000,000 d. Under 100 e. Over 100 - ANSWER