[MAexile]

The next thing we’ll know, we’re using SLR cameras for home-made XRAYS.

http://www.sciencebuddies.org/science-fair-projects/project_ideas/Phys_p083.shtml#summary

[TXnMA]

Bummer -- doesn't even let you build your own x-ray tube.... '-)

FWIW, I was amazed that they consider a 1-2 week project "long". I usually spent all summer working on my projects for the next school year.

And my 5th-grade granddaughter spent over six weeks on her award-winning AGW-busting project. (She had a full month of data from her own daily temperature measurements.)