Across
- 1. a break or hole in an object or between two objects.
- 3. the basic unit of a chemical element.
- 5. a geometric figure such as a square, triangle, or rectangle.
- 8. difference between smallest and largest.
- 10. how quickly something moves.
- 15. material such as coal, gas, or oil that is burned to produce heat or power.
- 16. an affair or situation under consideration; a topic.
- 17. an amount of space between two things or people.
- 18. the degree of compactness of a substance.
- 19. relating to chemistry, or the interactions of substances as studied in chemistry.
- 21. smallest or lowest.
- 22. the speed of something in a given direction.
Down
- 2. an article or substance that is manufactured or refined for sale.
- 4. the amount of matter in something.
- 6. the strength and vitality required for sustained physical or mental activity.
- 7. the amount of time occupied by something.
- 9. the space between two intersecting lines or surfaces at or close to the point where they meet.
- 11. something carried by a missile or rocket.
- 12. facts and statistics collected together for reference or analysis.
- 13. a thing in the form of or resembling a tube.
- 14. place in bottles or jars.
- 16. as great, high, or intense as possible or permitted.
- 20. a thick rope of wire or nonmetallic fiber, typically used for construction, mooring ships, and towing vehicles.
- 23. start or set in motion.
