1. The Electromagnetic Spectrum
Unit 5
Chapter 22 … Section 2

2. Warm-Up
The E.M. Spectrum
Listen to the song … identify the forms of electromagnetic radiation and one example
type of EM radiation one example 1. 2. 3. 4. 5. 6. 7.

3. The E.M. Spectrum
Learning Objective:
I will be able to identify how electromagnetic waves differ from each other in terms of wavelength, frequency, and energy.

4. Visible Light located somewhat in the middle of the EM spectrum
definition: the very narrow range of wavelengths (frequencies) in the EM spectrum that humans can see
located somewhat in the middle of the EM spectrum
Bill Nye video:

5. The E.M. Spectrum
Visible Light UV V B G O R

6. Visible Light (spectrum shown in the other direction!)
The E.M. Spectrum
Visible Light (spectrum shown in the other direction!) UV
KINDA IN THE MIDDLE V B G Y O R

7. <tip: moving outward from Visible Light> ROYGBV
The E.M. Spectrum
<tip: moving outward from Visible Light> ROYGBV
Infra-Red
Infra = below
(below the Red)
The alien “Predator” used I.R. to hunt
Ultra-Violet
Ultra = beyond
(beyond the Violet)
The “Ultraman” superhero is beyond human

8. the other one decreases
The E.M. Spectrum
Relationships: &
As one increases,
the other one decreases
Example:

9. Wavelength ( ) & Energy Bigger … lower … lower Energy
The E.M. Spectrum
Wavelength ( ) & Energy
Bigger … lower … lower Energy
Smaller … higher … higher Energy

10. Exit Ticket Draw your own Electromagnetic Spectrum:
The E.M. Spectrum
Exit Ticket
On a sheet of paper,
Draw your own Electromagnetic Spectrum:
Include all 7 categories
Show and color the Visible Spectrum
After this Exit Ticket is OK’d by Mr. S, you can finish working on your Desert Life Cycle