Across
- 4. to describe what is shown
- 6. greek root meaning Earth
- 7. invisible energy rays
- 10. a scientist studying life in the universe
- 11. group of animals living in one place
- 13. organizes related information
Down
- 1. detecting devices
- 2. tiny living things
- 3. greek root meaning measure
- 5. vehicles controlled remotely
- 8. to show the geography of a place
- 9. to add more information about a topic
- 12. greek root meaning study of