Science Vocabulary

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Across
  1. 1. the action of following
  2. 3. absolutely necessary or important
  3. 6. a first, typical or preliminary model of something
  4. 10. a new method
Down
  1. 2. strengthen or support
  2. 4. combine a number of things into a coherent whole
  3. 5. the repetition of a process
  4. 7. a way that produces or increases something
  5. 8. combine one thing with another
  6. 9. making small changes in particular