Chapter 5 Earth Science

10. The cloud of gas and dust in which a star is born is a(n) ___________ 117

20. Galaxies are divided into groups by ______ 112P1

14. Which star color is the hottest?_______ Box 110

5. An explosion of a large star is a(n) _____________ 119

2. One of the largest stars that forms after using up its hydrogen is a(n) ______________. 118

3. A small, hot, dense star is a(n) ______ 118

18. Which pair of objects is farthest apart?____ & _____ 114 P3 & P4

9. Our solar system belongs to the _______________ 123.

4. Distances to stars are measured in units called ________. 114

13. Which star magnitude is the brightest? _________ Picture 110

8. How bright a star LOOKS is its ____________ 109

12. Everything that exists is called _________ 123.

17. A star's brightness depends on which 2 things? ___ 109 P1

6. Patterns of stars seen from Earth are called _________ 121

7. A group of billions of stars is called a(n) _________ 122

21.A star the size of the sun will swell and become a__________ near the end of its life 118P2

16. A light-year measures __________ 114

11. Stars shine because of a process called _________ 108 P2

19. During fusion in stars, hydrogen particles combine to form helium & ________ Picture 108

22. Light cannot escape from _______ 119 P1

15. Which star color is the coolest? _______Box 110

1. The actual brightness of a star is called its _________. 109