1. Lesson 2: Waves of the Electromagnetic Spectrum Essential Questions:
Unit: Sound and Light
Lesson 2: Waves of the Electromagnetic Spectrum
Essential Questions:
1.) How do electromagnetic waves compare?
2.) What makes up the electromagnetic spectrum?

2. What makes up the electromagnetic spectrum?
The electromagnetic spectrum is the complete range of electromagnetic waves in increasing frequency.

3. Lowest frequency and lowest energy
Highest frequency and highest energy

4. Types of Electromagnetic Waves
Example of Use
1. Radio waves
Carry signals for radio programs

5. Types of Electromagnetic Waves
Example of Use
2. Microwaves
Detect objects (radar)

6. Types of Electromagnetic Waves
Example of Use
3. Infrared Rays
Show regions of different temperatures (thermograms)

7. Types of Electromagnetic Waves
Example of Use
4. Visible light
Waves that can be seen

8. Types of Electromagnetic Waves
Example of Use
5. Ultraviolet rays
Produce vitamin D

9. Types of Electromagnetic Waves
Example of Use
6. X-rays
To look at bones and teeth

10. Types of Electromagnetic Waves
Example of Use
7. Gamma rays
Examine the body’s internal structures