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Type: Multiple-Choice
Category: Sun
Level: Grade 7
Score: 1
Tags: NGSS 5-ESS1-1; ESS1A
Author: LBeth
Last Modified: 7 months ago

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Grade 7 Sun

Distances between objects in space are very large. Instead of measuring distance in miles or kilometers, astronomers use a measurement unit called an astronomical unit (AU). 1 AU equals the average distance from Earth to the Sun. Sirius is the brightest star in the night sky. It is located about 544,000 AU from Earth.

Which statement correctly compares the apparent brightness of Sirius and the Sun?
  1. Sirius looks brighter than the Sun because it is located closer to Earth.
  2. The Sun looks brighter than Sirius because it is located closer to Earth.
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