Across
- 4. anything that is shaped like ball or a globe
- 6. to judge or discover the value of something
- 7. of or having to do with astronomy, the science of the sun, stars, planets, and other space objects
- 8. to move in a circle around another object
Down
- 1. nearly correct or exact; about
- 2. rules, standards, or tests by which something or someone can be judged or measured
- 3. the length of a straight line passing through the center of a circle or sphere, from one side to another
- 5. the act or process of determining something using mathematics