Across
- 6. Related to people's race.
- 10. A scientist who studies stars and planets.
- 11. Something unfair.
- 12. A person who studies a lot, especially in school or college.
- 13. An old tool used to measure the position of the stars and planets.
- 16. A math problem showing that two things are equal.
- 17. Someone who studies or is an expert in math.
- 18. The time before the year zero. Acronym
- 20. Happening often. Adverb
Down
- 1. Related to machines or using machines.
- 2. Related to measurements in space, like height, width, and depth.
- 3. A book about someone's life.
- 4. A young person with exceptional talents or abilities.
- 5. A series of rulers from the same family.
- 7. A very long time.
- 8. In every part of a place or in the entire period of time.
- 9. In order according to time. Adverb
- 14. Signs of illness.
- 15. Keeping people of different races, religions, etc., separate from each other.
- 19. The time period we live in now, after the year zero. Acronym