sc or s sounds

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Across
  1. 2. going-down
  2. 4. seeing-something-beautiful
  3. 6. chemisty-biology
  4. 7. a-strong-smell
Down
  1. 1. going-up
  2. 3. 2-sharp-blades-together
  3. 4. natural-features-of-landscape
  4. 5. something-in-a-movie