1. Stars in the Universe Module A Chapter 1 Grade 6

2. Scientists measure the distance to stars in… light-years

3. Light travels from the sun to Earth in about… 8 minutes

4. The hottest stars are… blue

5. The sun is a… mid-life star & is the closest star to Earth

6. Stars are found in groups called… galaxies

7. Elliptical Galaxy Shaped like sphere that is stretched out at ends

8. Spiral Galaxy Sweeping arms extending from a densely packed center The Milky Way is a spiral galaxy

9. Irregular Galaxy Contains many young stars Generally the smallest of the 3 galaxies

10. 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

11. Stars begin to form when… hydrogen & dust are pulled into a ball by gravity

12. 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

13. Just before it dies, a massive star turns into a… supernova

14. Clouds of gas & swirling dust in spaces between stars are… nebulas

15. Concept Map

16. This page was copied from Nick Strobel's Astronomy Notes. Go to his site at www.astronomynotes.com for the updated and corrected version.Nick Strobel's Astronomy Notes www.astronomynotes.com