2021 SECC Division A Project: Marble Machine


Students are encouraged to search for resources on-line. Here are some terms and concepts for reference.

Terms and Concepts

  • Panning
  • Screening
  • Diameter
  • Density
  • Gravity

Additional concepts that can be related to the activity:

  • Gravitational potential energy
  • Kinetic energy
  • Energy conversion
  • Simple machines


  1. What are some examples of sorting, screening, or sifting objects or materials from your everyday life?
  2. What are some large-scale or industrial examples of sorting, sifting, or screening?
  3. Search the internet for videos of different sorting machines. How do they work?