Ecosystems and Sound

3. – What is an example of a microorganism?
5. – Where can sound NOT travel?
6. – What forms when magma reaches the Earth's surface?
7. – How does sound travel?
10. – What is the Earth's outermost layer called?
12. – What pesticide is used to kill mosquitoes?
14. – What type of mountains are formed by plate collisions?
15. – What natural disaster is caused by sudden movements of tectonic plates?

1. – What is created when sound is reflected?
2. – What breaks down dead plants and animals in a food chain?
4. – What disease is spread by mosquito bites?
8. – What causes sound to be produced?
9. – What evidence supports the theory of continental drift?
11. – In which state of matter does sound travel the fastest?
13. – What do we call a tiny living thing too small to see without a microscope?