Need a science fair project

My 7th grade daughter wants to do a science fair project that incorporates photography -- either as the focus of the project or part of the presentation process.

Anyone have any cool ideas?

Oh, definitely the process of B&W film development!

how about a pinhole camera... like the ones made of legos... (put a 35mm film in it) and after that develop it... (idk how she'll do it at the science fair)

http://www.sciencebudd​ies.org …st_area.php?ia=​Photo&dl=5

Macros -- stuff you can't see with the naked eye.

Compare that to using, oh, a microscope.

(Process, differences in magnification, disturbance of the subject, death of the subject, impact of observation...)

Photograph water drops, perhaps use some type of laser trigger as drop breaks beam

^^ Cool.

There are so many fun things you can do.
Prove that gravity exists photographically. With a digital camera and a strobe light, photograph falling objects and calculate the acceleration due to gravity. Some math, lots of photography, and fun stuff. Set the camera so that the shutter speed is long enough so that the object falling has time to reach the ground. A rolling object on a ramp actually works better because you still see the acceleration over time in a more compact area. Then with the strobe flashing at a known speed, photograph the event and measure the distance between the object. Then one can calculate the acceleration.

The science of stereoscopic images. Very timely subject as well with all of the 3D movies and such. Anyway, take a few stereo images, build a viewer and then explain the physics behind 3D images. Some math, lots of fun.

Calculate the speed of rotation for the sun. Using a box pinhole camera to view sunspots and a digital camera to record them take a series of images over a period of say a month and measuring the movement of the sunspots, one can calculate how fast the sun rotates. This one is cool because the sun does not rotate uniformly as a solid object would but at different speeds.