Across
- 2. For thousands of years ___ grew in Yellowstone National Park.
- 5. A city can help stop sprawl by planning how it grows. Planning may be a _____ task, but it has payoffs!
- 10. In 1970, Costa Rica's National Park service was founded by Mario Boza. He worked to save and set aside protected land. Other _____ groups, or groups that work to save land or animals, joined him.
- 11. William _____ is a scientist who studies aspens. He found that aspens began to disappear around the same time that the wolves were removed.
- 13. It's a ____law that as more people move in, a city must expand, or grow larger.
- 14. Near the village was a large pond that was filled with all kinds of animals, _____ frogs.
- 16. You learn so much about animal ____, or areas where animals live and find shelter, on an eco-tour!
- 18. The wolves were killing sheep and cattle at ranches, so ranchers and ____ killed many of the wolves. The rest were removed from the park.
- 20. Sprawl is taking a ___ on humans, animals, and plants.
- 22. Though Costa Rica was not a wealthy country in the 1960's, it had an important ____, it's rain forests!
- 23. The old woman asked the chief, "How can thousands of mosquitoes be killed by a few people? It is the ____ of the mosquitoes to lay many, many eggs."
- 26. More schools, stores, and offices were built in Atlanta between 2000 and 2006. Growth like this is called ____.
- 27. In the African folktale "All Things Are Linked," a cruel ___ ruled over a village, and people who did not obey him were put to death.
Down
- 1. Eco-tourist guides are people who explain the ___ of plants and animals in the rain forest ecosystem.
- 3. _____, or scientists who study ecology, call Kudzu "the plant that ate the South."
- 4. When a few days had passed after the people of the village killed the frogs, the people and their farm animals were all feeling _____, covered with mosquito bites.
- 6. By 1997, Costa Rica had 24 ____ parks.
- 7. Roads help plants move to new places; a seed may stick to a muddy ____, or it gets caught under a truck or car.
- 8. In the 1920's the wolves in ____ were causing problems.
- 9. Deer eat tree bark and ____, or break-into, people's gardens.
- 12. The wise old woman asked the chief, "What are you doing? Don't you know all things are ___?"
- 15. Sprawl means less green space. Trees are cut. Wetlands are filled in. Roads divide land into smaller and smaller ____.
- 17. As cities expand, animal habitats disappear. So, big animals like deer come to our homes _____ food.
- 19. Ripple found young aspens growing along the banks of ____ in Yellowstone. This shows that bringing back wolves has helped bring back the aspens.
- 21. The night after the people of the village killed the frogs, the chief slept ____, but the old woman stayed awake.
- 24. People realized that wolves played an important ___ in Yellowstone's ecosystem.
- 25. When more schools and public buildings go up, people must pay more money to the government called ____.