Across
- 3. All of our planets make up this
- 4. A Greek mathematician and astronomer
- 6. the theory sun is the center of the universe and the earth rotates its axis
- 8. means the sun is at the middle of the universe
Down
- 1. The basic words of this concept are function, classification, and hierarchy
- 2. The theory that The Earth is the center of the universe and is stationary
- 5. What is the earth called
- 7. Added contributes to astronomy, mathematics, geography, musical theory, and optics