Across
- 2. A place where there is no matter at all.
- 3. Electromagnetic radiation we feel as heat and has a longer wavelength than visible light.
- 5. Electromagnetic radiation that has a shorter wavelength than ultraviolet radiation.
- 6. Electromagnetic radiation with a longer wavelength than infrared radiation.
- 12. The entire frequency range of electromagnetic waves.
- 13. The order colours of the visible spectrum from long to short wavelength.
- 14. Electromagnetic radiation with the shortest wavelengths and highest frequencies.
- 15. Electromagnetic radiation with the longest wavelengths.
- 16. Electromagnetic waves that can be detected by the human eye.
Down
- 1. Absorbing radiation of one wavelength and re-emitting at a visible wavelength.
- 4. Deoxyribonucleic acid. Chemical that makes up genes and chromosomes.
- 7. A hazard of receiving high frequency electromagnetic waves.
- 8. Vibrations of voltage and current in radio aerials.
- 9. Cancer treatment in which a patient is given gamma radiation to kill the cancer cells.
- 10. A change in the DNA instructions in a cell.
- 11. Electromagnetic radiation with a shorter wavelength than visible light.