The Sun Quiz Review

2. ______ is the latin word for Sun.
4. Sun is our primary source of _____ and light.
6. The Sun is about 93 __________ miles from earth.
8. Traveling at the speed of _________ (186,000 miles per second), light takes 8 minutes and 19 seconds to travel from the Sun to the Earth.
11. The Sun is at the center of our _________ system.
14. Astronomers believe that the Sun is 4.7 __________ years old.
15. We consider Galileo one of the first modern scientists because he tested his ideas by performing _____________.
17. According to Copernicus's new theory, the planets (including the Earth) all revolve around the _______.
18. The Sun is made up of about 71% __________.
20. During Copernicus's time, most people believed that the _________ was at the center of the Universe.
21. Without the Sun, _______ could not exist on Earth.
22. The Sun is the closest _______ to Earth.

1. The idea that the Earth was at the center of the Universe was based on the writings of Egyptian astronomer ______________.
3. In both Greek and Roman mythology, _________ is the god of the Sun.
5. Astronomers believe that the Sun began to form 9 billion years after the ______ ________.
7. The Sun’s energy is generated by __________ fusion. This reaction releases an enormous amount of energy.
9. Albert Einstein called ___________ the Father of Modern Physics, which is the study of why objects behave the way they do.
10. Galileo spent much of his time trying to figure out how things _________.
12. When Galileo was in schools, his teachers nicknamed him "the ___________."
13. Nicholas ______________ is called the Father of Astronomy, because he was the first to explain the movement of the planets and the stars in way that made sense.
16. Our word “Sun” comes from an Old English word ________.
18. The sun is made up of about 27% __________.
19. After observing a swinging chandelier, Galileo began to conduct experiments related to a force we now call _____________.