Across
- 4. something created
- 7. important
- 8. prefix meaning life
- 13. one that blocks a process
- 14. to copy
- 15. a man-made river
- 16. to stop
- 17. an equipment to push liquid
- 18. lines, shapes, or shapes repeating in a regular way
- 19. a machine for lifting heavy objects
Down
- 1. find out
- 2. without end
- 3. to create something
- 5. a process of copying
- 6. basic part of something
- 9. useful
- 10. to show meaning
- 11. a hard material
- 12. can hurt or damage