Soundwaves Week 15 | long 'e'

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Across
  1. 3. Without much effort; not hard. (6)
  2. 5. The joint in the middle of your leg. (4)
  3. 8. When you must have something, like water or sleep. (4)
  4. 9. A part of something, like a puzzle piece. (5)
  5. 12. What you see or imagine when you're asleep. (5)
  6. 13. The opposite of quickly. (6)
  7. 14. Very, very small. (4)
  8. 15. A yellow or white food made from milk. (6)
  9. 17. All the people; everyone. (9)
Down
  1. 1. A very tiny length (1,000 in a metre). (10)
  2. 2. A unit to measure length (100 centimetres). (5)
  3. 4. A small unit of length (100 in a metre). (10)
  4. 6. You use this to unlock a door. (3)
  5. 7. More than one person. (6)
  6. 10. In the middle of two things. (7)
  7. 11. Another word for clean and neat. (4)
  8. 13. Something you read or hear that tells what happened. (5)
  9. 16. Feeling great joy or excitement. (5)