| A | B |
|---|
| Who was the first scientist to use a telescope for astronomy and believed that everything revolved around the sun? | Galilei Galileo |
| Who theorized that the planets revolved around the sun? | Nicolaus Copernicus |
| Who was an Egyptian geographer, astronomer, and mathematician who believed that the planets and sun orbited the Earth? | Claudius Ptolemy |
| I believed that the Earth was a sphere and that the universe was spherical. I also believed that the solar system was an Earth-centered model. | Aristotle |
| How often does the moon revolve around the Earth? | About once a month |
| The sun is an averaged-sized ____. | star |
| How old is the sun? | About 4.6 billion years old |
| Name the phases of the moon in order, beginning with the new moon. | New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, and waning crescent |
| List the sizes of the Earth, sun, and moon in order beginning with the smallest. | The moon, the Earth, the sun |
| Describe the moon. | It is a small, rocky satellite with temperature extremes, virtually no atmosphere, no water, no life. |
| How does the Earth's atmosphere protect us from the sun? | The atmosphere blocks out most of the sun's damaging rays. |
