6th Grade Ch 2 Lesson 3 Review
Quiz by Rachael Davenport
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16 questions
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- Q1What causes a star to shine?a switchrocks bumping into each othergases lighting on firenuclear reactions30s
- Q2A star's color depends on...its massits neighborsits ageits temperature30s
- Q3A large sphere of hydrogen gas hot enough for nuclear reactions to occur in its coreasteroidplanetstarcomet30s
- Q4What unit of distance is used to measure very far objects in the universe (outside of our solar system)?meters per secondAUmileslight-year30s
- Q5What is the hottest stars' color?redblueyellowwhite30s
- Q6Galaxies that are shaped like basketballs or footballs that have little gas and dust and are made of older, redder stars are calledspiral galaxiesspherical galaxieselliptical galaxiesirregular galaxies30s
- Q7What is the coolest stars' color?redyellowblue-whiteorange30s
- Q8Huge collections of stars, gas, and dust are calledgalaxiessolar systemsstarsplanets30s
- Q9Two stars orbiting each other's center of mass is called abinary star systemtwin star systemsolitary starlocal group30s
- Q10Gases shaped like disks and that have a combination of younger and older stars are calledspherical galaxieselliptical galaxiesspiral galaxiesirregular galaxies30s
- Q11About how long will the Sun continue to shine?7.5 million years5 billion years3 million years10 billion years30s
- Q12Galaxies that have large amounts of gas and dust and therefore younger stars are calledelliptical galaxiesspherical galaxiesspiral galaxiesirregular galaxies30s
- Q13What is NOT true about the universe?it is not growingit is expandingit is 13-14 billion years oldit is cooling30s
- Q14What is the correct order, from smallest to largest?galaxy, supercluster, cluster, starstar, cluster, supercluster, galaxysupercluster, galaxy, star, clusterstar, galaxy, cluster, supercluster30s
- Q15Most of the mass in the universe is thought to bein the Milky Waydark matterlight-emitting matterin the Sun30s