1. Get out your note book

4. Sound travels slower than light

5. Sound: Mechanical and Longitudinal
Light: Electromagnetic and Transverse
Sound: Mechanical and Longitudinal
Speed: 340 m/s mph
Speed: 300,000,000 m/s
670,000,000 mph

7. Sound travels faster/slower, depending on the medium
Liquids are not packed as tightly as solids. And gases are very loosely packed. The spacing of the molecules enables sound to travel much faster through a solid than a gas. Sound travels about four times faster and farther in water than it does in air.
Demonstrate this phenomenon using students to pass energy