Across
- 3. this animal cuts down trees to make dams
- 4. it's eruption can send dust and gases high into the air
- 5. how many kilometers thick the ice was in some parts of North America during the last ice age
- 7. every living thing on earth is _________________
- 8. living things interact with each other and non-living things in a community
- 10. what bees gather from flowers
- 12. a forest ______ can rapidly change a landscape
- 13. large ants that eat seeds
Down
- 1. all of the living and non-living things in nature
- 2. __________ lizards are becoming fewer in number as they have less food to eat
- 6. an ____ age happens when Earth has colder than normal temperatures for a long period of time
- 9. an organism taking over an ecosystem that is not their original home
- 11. some trees have seeds that cannot start to grow unless they have been _______
- 12. this type of ant has a very painful bite