Across
- 3. a person who puts out fires for a job
- 4. a line that show changes over time
- 8. to find the right size or amount
- 9. to test or show correctness or existence
- 10. an object that attracts certain metals, like iron
- 13. close tightly to stop air or liquid
- 15. to take care of or help grow
- 16. the use of science to make useful things
- 18. a building where you can buy things
- 19. using computer technology
- 20. bolts of electricity that happen during storms
Down
- 1. something used to cure a sickness or injury
- 2. to push away
- 5. a system that connects computers globally
- 6. a pair of connected metal bars used by trains
- 7. a person or thing that gives information
- 11. the way of moving people or things
- 12. a rural area where few people live
- 14. the time happening right now
- 17. a nonliving thing that can be seen or touched