How do STEM professionals measure at nanoscale? With a laser, of course!
In this STEM lab, learn how to use a laser for measuring the tiniest things – like the width of a human hair! This hands on lesson brings STEM to light! Students will determine width of human hair using diffraction and a laser of known wavelength.
Grade Range: 9 to 14
Duration: 1/2 Hour – 1 Hour
- Red and green Laser Blox
- Meter stick
- Blank wall
PS4.B – Electromagnetic Radiation
- Use mathematical representations to support a claim regarding the relationships between the frequency, wavelength and speed of waves traveling in various media.
Science and Engineering Practices
- Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations