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Stars in the Universe Module A Chapter 1 Grade 6 Scientists measure the distance to stars in… light-years Light travels from the sun to Earth in about… 8 minutes The hottest stars are… blue The sun is a… mid-life star & is the closest star to Earth Stars are found in groups called…
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Stars in the Universe Module A Chapter 1 Grade 6
Scientists measure the distance to stars in… • light-years
Light travels from the sun to Earth in about… • 8 minutes
The hottest stars are… • blue
The sun is a… • mid-life star • & is the closest star to Earth
Stars are found in groups called… • galaxies
Elliptical Galaxy • Shaped like sphere that is stretched out at ends
Spiral Galaxy • Sweeping arms extending from a densely packed center • The Milky Way is a spiral galaxy
Irregular Galaxy • Contains many young stars • Generally the smallest of the 3 galaxies
Earth is a planet in our solar system. The solar system is on one of arms of a spiral galaxy called the Milky Way. The Milky Way is in a group of galaxies called the Local Group. This group is part of the universe. Universe
Stars begin to form when… • hydrogen & dust are pulled into a ball by gravity
The energy inside a star that results in visible light is produced by.. nuclear fusion Two atoms fuse together by the process of… nuclear fusion
Just before it dies, a massive star turns into a… • supernova
Clouds of gas & swirling dust in spaces between stars are… • nebulas
This page was copied from Nick Strobel's Astronomy Notes. Go to his site at www.astronomynotes.com for the updated and corrected version.