Early astronomers observed the heavens constantly. 2. The movements of the sky fascinated them. 3. Often...

1. Early astronomers observed the heavens constantly.
2. The movements of the sky fascinated them.
3. Often they created myths and stories explaining the stars.
4. To learn more, our class visited the planetarium yesterday.
5. Mr. Simpson told us about the solar system.
6. Then we named the planets in order from the sun.
7. All the planets orbit the sun.
8. On its surface, tiny Mercury resembles our moon.
9. However, Mercury lacks an atmosphere and a moon.
10. Venus possesses a poisonous atmosphere.
11. The spacecraft photographed the surface of Venus.
12. Clouds covered the surface.
13. We told Mr. Simpson about our studies.
14. First, Earth contains rocky material.
15. A moon orbits our home planet.
16. Earth's atmosphere supports many forms of life.
17. My friend studies Mars and Jupiter.