Solar System

3. name given to to the inner planets (Mercury, Venus, Earth, & Mars)
4. a Italian astronomer, first one to create and use a telescope at night to observe night sky
7. a Polish astronomer, who put the sun as the center of the solar system and that the planets revolved around it
9. objects that revolve around the sun that are too small to be considered planets
10. a meteoroid that has fallen to earth
11. a model that believes that the earth is the center of the universe " earth centered model"
12. path of one object in space around another
14. a chuck of rock or dust in space or Earth's atmosphere
16. the study of the moon , stars, and other objects in space
17. a Greek astronomer, who believed the Earth was the center of universe

1. any object that resolves around another objects in space
2. a model that believes that the sun is the center of the universe. " sun centered model"
5. belt these are large rocky objects found mostly between the Mars & Jupiter
6. a scientist who studies the universe beyond Earth
8. force of attraction between objects
10. a burning meteoroid that shows a streak of light
11. the name given to the outer planets (Jupiter, Saturn, Uranus, & Neptune)
13. particles of dust, ice and gases orbiting the sun
15. a Egyptian astronomer , who believed the earth was the center of universe