Silent letters

12345678910
Across
  1. 2. Not sure or uncertain about something.
  2. 4. One of two equal parts.
  3. 5. Very quiet and peaceful.
  4. 8. Broken or ruined car or boat.
  5. 10. A sharp tool for cutting.
Down
  1. 1. Land with water all around it.
  2. 3. Short digit on your hand.
  3. 6. What you give to a question.
  4. 7. To use a pen or pencil on paper.
  5. 9. To tap or hit a door to be let in.