Across
- 3. a transfer of energy that travels through a medium
- 6. what animal uses infrared waves to find the warmth of their prey
- 9. unseen to the human eye but can be felt as heat
- 10. what can detect infrared rays
- 11. some of the discoveries from infrared ray research
Down
- 1. infrared rays are shorter than this in wavelength yet right next to in the spectrum
- 2. what has been discovered by using an infrared telescope
- 4. what infrared rays are next to in the electromagnetic spectrum yet longer in wavelength
- 5. a device that contains infrared lights that enables us to change channels
- 7. when was infrared rays founded
- 8. how do we detect infrared rays in people