5E Essential Lesson – The Sun and The Electromagnetic Spectrum SC.7.P.10.1 Illustrate that the Sun’s energy arrives as radiation with a wide range of wavelengths, including infrared, visible, and ultraviolet, and that white light is made up of a spectrum of many different colors Image above from NASA website: http://sec.gsfc.nasa.gov/popscise.jpg

How does an illustration of the electromagnetic spectrum show the characteristics of electromagnetic waves?

wavelength

frequency

2 1 7 1 3 5 Notes: This is a partial example to help students understand the “task” The types of electromagnetic radiation are in alphabetical order on this list, not in order of relative energy Be sure to note the directions at the top of each column, the energy and frequency are in the same order (greatest to least), the wavelength is in reverse order (longest to shortest)

Wavelength-the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave. What is a wavelength?

How are frequency and wavelength related? Frequency-equals the number of waves that passes a given point per period of time Higher frequency + shorter wavelengths + higher energy What is frequency? How are frequency and wavelength related? How are frequency and wavelength related to energy level?

Make an illustration of the sun’s energy being received by the Earth. Include the following: Characteristics of the waves Labels as appropriate electromagnetic wave gamma rays infrared rays microwaves radio waves ultraviolet visible light x-rays