Stuck in someone else's frames? break free!
RADIOACTIVE MATERIALS ON PHOTOGRAPHIC PAPER
After two days, your teacher will remove the watch, wrap the film, and have it developed. Examine and describe the printed picture.
For comparison, your teacher will place different materials, such as paper, cardboard, tinfoil, and leadfoil between the radioactive watch and a unexposed film.
After allowing each material to remain undisturbed for several days, he or she will have the film developed, and you can examine the pictures.
You might be interested in researching the work of Henri Becquerel (1852-1908), a French physicist. Becquerel found that when a sheet of black material was placed between photographic paper and uranium (element 92), a picture would be produced.
He hypothesized that the uranium must be giving off rays that could pass through the black material and affect the photographic paper.
Similarly, you can test other materials such as radioactive rocks.
Your teacher will make certain that you are not given any dangerous materials for any experiment.
Any problems with this page? Send URL to webmaster. Thank you!
We publish two newsletters a couple of times a month. To subscribe, send a blank email to the appropriate email address. Topica will send you a message asking if you really intended to subscribe - just click reply - that's it!
Free Recipe Collection Newsletter:
Jewish Recipe Collection Newsletter:
Tired of Geek Speak when