Across
- 4. a category of people or things having common characteristics
- 6. a generalization that is used to describe a group
- 7. in the order that events happen
- 8. used to measure how hot or cold something is
- 9. a King or Queen
- 10. a person who designs buildings
- 11. where plants and animals live
- 12. having lots of energy
- 14. source of water for fire trucks located on curbs
- 15. medicine
- 19. a gas that is colorless and odorless
- 20. the study of life
- 21. power used by people and machines
Down
- 1. an original or first model of something from which other forms are copied or developed
- 2. to add water
- 3. having to do with heat
- 5. a. happening at the same time or rate as something else. B. To adjust a clock or watch to show the same time as another.
- 8. used to control temperature
- 11. having body parts (such as a leg) replaced with electronic equipment
- 13. over a long period of time
- 16. normal for a person or group
- 17. story about a person's life
- 18. history that is recorded in order of occurrence