Echinoderms

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Across
  1. 1. the arms in the sea stars are called
  2. 2. water vascular system transport oxygen and food
  3. 3. feather star arms
  4. 5. feet works like a tongue to help them taste things
  5. 7. sea star's favourite food to eat
  6. 8. urchin extremely long spines
  7. 9. comes out of the sea star mouth to catch a prey
  8. 10. urchins called spiky balls
  9. 12. derma
  10. 13. called sea lilies
Down
  1. 1. sea stars can grow their lost parts
  2. 4. stars have between 5 to 30 arms
  3. 6. greek word means spiny skin
  4. 7. stars large brittle stars
  5. 11. they spend a lot of time in one place