Units 4 & 5

123456789101112131415161718192021222324252627282930
Across
  1. 2. the maximum amount that something can hold or contain
  2. 3. a place where a large amount of water is stored
  3. 4. a difficult task or problem that requires effort
  4. 6. the use of something, especially food, energy, or resources
  5. 7. a disadvantage or negative feature
  6. 11. to fall down or fail suddenly
  7. 13. based on testing or trying something to discover what happens
  8. 16. to change something from one form, use, or system to another
  9. 17. the amount of space that something occupies
  10. 18. working well without wasting time, energy, or resources
  11. 21. possible or likely to happen or develop in the future
  12. 22. showing understanding or concern for another person's feelings
  13. 23. to leave something behind or stop doing it
  14. 25. the main part of a country or region, not including islands
  15. 27. to keep something in good condition or at the same level
  16. 29. causing disagreement or strong differences of opinion
  17. 30. to change something greatly in form or appearance
Down
  1. 1. a connected system of people, places, machines, or organizations
  2. 2. staying the same or behaving in the same way over time
  3. 5. something that restricts what is possible
  4. 8. existing or happening in the present time; modern
  5. 9. to expect or prepare for something before it happens
  6. 10. work done to keep something working properly
  7. 12. a place, person, or thing from which something comes
  8. 14. a basic part or feature of something
  9. 15. money, time, or resources put into something with the expectation of a benefit
  10. 16. a series of events that regularly repeats
  11. 19. an important or noticeable part or characteristic
  12. 20. to become larger or make something larger
  13. 24. to get or acquire something
  14. 26. the purpose or job of something
  15. 28. to produce or create something