1. Academy of Science: Outreach Program
Michael Yang
Kyle Kelley

2. What We Learned How to use the SEM and AFM Plan lessons Outreach
Set up, mechanisms, and functions
Plan lessons
Outreach

3. Scanning Electron Microscope
Ejecting electrons from tungsten filament
Voltage difference accelerates electrons
Electrons pass through magnetic lenses to focus beam to a spot
Back scattered detector
Vacuum and gold plating

4. Atomic Force Microscope
Nano scale high-resolution
Images created by “tapping”
Large specimen range (0.1mm x 0.1 mm in x,y with mm height range, conductive and insulating OK)
Can acquire topographic images, among other signals
Scanning speed and image size

5. Two Rivers Community School
Teach sense of scale
Measure with Twinkies and pennies
Table top SEM

6. Ashe County High School
Sense of scale
How do SEMs function
Hands on experience with the SEM

7. Hardin Park Elementary School
Demos on sound
Oscilloscope
Sound needs a medium to travel through
Characteristics of waves

8. Personal Experiences
Providing children with the opportunity to work with technologies that would be otherwise unavailable.
Becoming more comfortable with public speaking through leading activities and demos.

9. Special Thanks Dr. Coffey Dr. Tashakkori Academy of Science
Ashe County High School
Marybeth Knight
Two Rivers Community School
Elissa Brown
Hardin Park School
Watauga County School System