The Prefix sion

12345678910
Across
  1. 4. When something gets bigger.
  2. 6. Perhaps a new building added on to your house?
  3. 8. When you leave something, or someone, out.
  4. 10. This happens when something is being worn away.
Down
  1. 1. Make sure you've got plenty of these if you go camping!
  2. 2. When something is hanging.
  3. 3. This is when you understand something.
  4. 5. For example, if a foreign army comes into your country without permission.
  5. 7. When something blows up.
  6. 9. When you put something, or someone, under pressure.