Book 4 Lesson 1

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Across
  1. 2. one of the hard parts inside the body
  2. 5. to pull something so that it becomes longer or wider; to become longer or wider in this way
  3. 6. all through a period of time
  4. 7. more than is usual; additional
  5. 8. a substance that is used or produced in a chemical process
  6. 9. physical exercises that people often do to music
  7. 10. material that is burned to produce heat or power
  8. 12. not interesting because the same thing is repeated many times
  9. 13. trouble or difficulty
  10. 14. to keep something or a supply of something for future use
  11. 16. to be or become curved
Down
  1. 1. the organ inside the chest that sends blood around the body
  2. 3. able to move or bend easily without breaking
  3. 4. to work correctly; to be in action
  4. 7. very good; of high quality
  5. 8. to cause something new to happen or exist
  6. 9. a situation in which there is a lot of action
  7. 11. to carry the weight of someone or something
  8. 13. the red liquid that flows through the body
  9. 15. the smallest living part of an animal or a plant body