Spelling - plurals of words ending in o

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Across
  1. 4. These are used to make ketchup.
  2. 6. These are black with white dots on them.
  3. 9. It is red and is found in a salad.
  4. 10. These are the sounds you might here in a cave.
  5. 11. It is black and has white spots.
Down
  1. 1. Lots of these are cooked to make chips.
  2. 2. It is brown, is edible and grows in the ground.
  3. 3. Superman, Spiderman and Wonder Woman are these.
  4. 5. These sometimes errupt.
  5. 7. Lava can escape from this.
  6. 8. A very brave person.
  7. 10. This is when a sound repeats itself.