sounds /images/Misc 1 Frame2 1 Kids_random quizX QuizBkg3 MC simple_1 0 Answer titlePage The Solar System 2 QT_Intro none MoveForward ButtonS1 ButtonSX1_skin * Start Quiz * center 330 1 4 Pluto is a ___ . dwarf planet comet planet meteorite 2 4 Plutoids are the dwarf planets that orbit in the ___ . Trans-Neptunian region asteroid belt Oort cloud Kuiper belt 3 4 Solar System's cosmic year is ___ . around 225 earth years one earth year 250 earth years 121 Pluto years 4 4 The asteroid belt lies between ___ . Mars and Jupiter Earth and Venus Jupiter and Saturn the Sun and Mercury 5 4 The gas giant planets consist mostly of ___ . hydrogen and helium rock and metal water vapor iron 6 4 The inner Solar System consists of ___ . the terrestrial planets and asteroids the Sun and Mercury helium and hydrogen dwarf planets 7 4 The Oort cloud is the source of ___ . long-period comets short-period comets high-energy radiation plasma neutrinos 8 4 The solar wind is comprised of mostly ___. electrons and protons neutrons and neutrinos steam helium and hydrogen 9 4 The Sun contains ___ of the Solar System's mass. 99.86% 53.21% one third all 1.32% 10 4 The terrestrial planets consist mostly of ___ . rock and metal water and sand oceans and volcanoes helium and hydrogen endPage Results1 none TotalScore scoredisplay center 80 getURL:[php_ThisPage] ButtonS1 NextActionButton_skin Repeat this Quiz 100 230 getURL:[php_ThisSubjectPage] ButtonS1 NextActionButton_skin Back to Subject Page center 330