Chapter 16 - Stars and Galaxies
by Rosemary P.
1. The distance light travels in one year.
2. A huge system of stars.
3. Is made of the sun and comets.
4. Light Year
5. Galaxy
5.1. Is a huge system of stars, dust, and gas held together by gravity.
6. Constalation
6.1. Is a group of stars that forms a pattern.
7. solar system
8. axis
8.1. Earth also spins, on an axis.
9. Revolution
9.1. Earth`s revolution around the sun lasts for just a few hours longer than 365 days.
10. Rotation
10.1. The earth completes one rotation, or one day, in about 24 hours.
