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Universe Questions - All Grades

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Grade 9 Universe

This question is a part of a group with common instructions. View group »

The Hubble sequence classifies galaxies based upon their                .
  1. age
  2. size
  3. morphology
  4. number of stars
Grade 9 Universe
The theory that proposes that the universe originated as a singularity, which subsequently exploded and expanded to form the universe.
  1. Magnitude Theory
  2. Milky Way Galaxy Theory
  3. Big Bang Theory
  4. Black Hole Theory
Grade 9 Universe
Which set of terms is arranged from smallest to largest?
  1. galaxy, star, cluster, supercluster
  2. star, supercluster, cluster, galaxy
  3. galaxy, supercluster, star, cluster
  4. star, galaxy, cluster, supercluster
Grade 12 Universe
What is a light-year?
  1. a shorter than average year
  2. the distance that light travels in one year
  3. the time it takes light to travel from the Sun to Earth
  4. the speed of time travel
Grade 7 Universe
There are three main types of galaxies.
  1. True
  2. False
Grade 5 Universe
Why are elliptical galaxies brighter toward the center?
  1. The stars are evenly distributed through the galaxy.
  2. The center is crowded with stars, and the number of stars decreases farther out.
  3. Most stars are near the outside of the elliptical galaxy, with dust clouds in the center.
  4. The stars are spread through out the galaxy in bands that look like the arms of spiral galaxies.
Grade 6 Universe
How do astronomers classify galaxies? Select all that are correct.
  1. by size
  2. by shape
  3. by distance from Sun
  4. by location in the sky
  5. by symmetry
  6. by light-years
Grade 7 Universe
Assuming the Andromeda galaxy rotates at a uniform rate, which stars are moving the fastest?
  1. Stars closest to center
  2. Stars farthest from the center
Grade 6 Universe
The geocentric theory states that
  1. stars are moving away from Earth.
  2. only the Moon revolves around Earth.
  3. all planets revolve around the Sun.
  4. all objects revolve around Earth.
Grade 7 Universe
Who proved that galaxies exist?
  1. Edwin Hubble
  2. Isaac Newton
  3. Tyro Brahe
  4. Charles Messier
Grade 8 Universe
What's the most common element in the universe?
  1. Hydrogen
  2. Oxygen
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