Across
- 5. The speed of something in a given direction.
- 6. Born before the end of the full term of gestation.
- 7. The phenomenon in which an object changes its position.
Down
- 1. A person who invented a particular process or device or who invents things as an occupation.
- 2. Someone who has no friends or company.
- 3. Someone who studies or teaches mathematics.
- 4. Italian natural philosopher, astronomer, and mathematician.