How small is a neutrino?

This live activity explores neutrinos, the most abundant particle in the universe and how their incredibly small size makes them so incredibly difficult to detect. Presented by Dr. Peggy Norris, Sanford Lab Education and Outreach. 

What you'll need:

  • 1 teaspoon of salt
  • a transparent cup of water
  • a spoon
  • a ruler
  • a toothpick
  • magnifying glass (optional)

Here are a few links you'll need during the event:

Link to WonderBoard

Link to Size Number Line

Want to dig deeper into this subject? Here are some links to get you started. 

How Small is an Atom? (TED-Ed talk [5.5 minutes])

The Scale of the Universe (Interactive website)

All Things Neutrinos (Fermilab's DUNE website)