Electromagnetic Spectrum
Across
- 4. This Scottish scientist predicted the existence of wavelengths beyond the purple end of visible light.
- 9. This British astronomer used a prism to separate light and measured the temperature of the resultant colors.
- 10. This type of radiation causes chemical bonds to release heat.
- 11. ___________ ________ come from hugely energetic events, such as colliding neutron stars.
- 12. Lower frequency radiation has much ____________ wavelengths.
- 13. Electromagnetic radiation was discovered more than a _____________ ago.
- 14. There are __________ groups of the electromagnetic spectrum.
- 15. Higher frequency radiation has very _________ wavelengths.
Down
- 1. This type of radiation is useful for cooking, because their frequencies can be easily absorbed by the molecules found inside food.
- 2. The lowest frequency form of radiation with the longest wavelengths.
- 3. The type of radiation that our eyes can detect.
- 5. The name given to the collection of all electromagnetic radiation in the universe.
- 6. The last form of radiation to be discovered. Discovered by Ernest Rutherford.
- 7. Radio waves and _______________, with their long wavelengths, allow scientists to see into dense molecular clouds where stars are born.
- 8. This radiation from the sun can be harmful in large quantities.