Yellowstone National Park crossword

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Across
  1. 1. Fill in the blank: Yellowstone is a giant ____(*Hint:it spews lava)
  2. 3. What rocks are formed by lots and lots of pressure on top of itself?
  3. 6. What is the biggest body of water in Yellowstone National Park?
  4. 7. What rocks are formed by lava or magma? (*Hint: Obsidian)
  5. 9. What is the most popular activity at Yellowstone National Park?
  6. 10. What is it called when animals move from one area to another?
  7. 13. What pointy objects made of obsidian can be found alongside the Yellowstone River?
  8. 14. Which state is most of Yellowstone National Park inside of?
  9. 16. What is a group of individuals of the same species that live in the same region?
  10. 17. What is the shape of the northeastern end of the Snake River Plain?(*Hint: semi ___)
  11. 18. What is the most abundant gem in Gem Mountain?
  12. 19. What is the most abundant animal at Yellowstone National Park?
Down
  1. 2. What is it called when animals work together to survive?
  2. 4. What is it called when the actions of an animal are from the response to its environment?
  3. 5. What are the big things called that cause earthquakes and volcanoes?
  4. 8. What is the process in which an animal is different from its ancestors?
  5. 11. What is the name of the most popular geyser at Yellowstone National Park?
  6. 12. What are bones encased in rock for a very long time called?
  7. 15. What are layers of rock in the ground called?
  8. 16. What color flower is most abundant in the park?