8.8C Electromagnetic Spectrum
Earth and Space
Using the Web Surfing Science websites your teacher has assigned to you,
complete the following online treasure hunt.
Part I: The Electromagnetic Spectrum
1.  How do the wave lengths of ultraviolet radiation compare to microwave radiation?
________________________________________________________________________
2.  What is one way radio waves are used by astronomers?
________________________________________________________________________
3.  How are gamma rays dangerous to living organisms?
________________________________________________________________________
4.  Electromagnetic radiation is absorbed or reflected by water vapor, carbon dioxide and
ozone in Earth’s atmosphere.
TRUE
FALSE
5.  How do astronomers use infrared light?
________________________________________________________________________
6.  How do scientists use gamma rays to determine the composition of a planet?
________________________________________________________________________
1
8.8C Electromagnetic Spectrum
Earth and Space
Part II: Electromagnetic Spectrum Tour
1.  What makes one form of electromagnetic radiation different from another?
________________________________________________________________________
2.  Launch the Interactive and complete the chart below.
Type of
Electromagnetic
Radiation
Wave Length
How humans use
this form of
radiation
Part III: NASA-Goddard Space Flight Center
1.  What is the electromagnetic spectrum?
________________________________________________________________________
2.  Which type of radiation has the highest energy (shortest wavelength) and which has the
lowest energy (longest wavelength)?
________________________________________________________________________
3.  Give two differences between visible light and infrared light.
________________________________________________________________________
2