Any ideas on what i could experiment on?
ok i have a science assignment and i need something to do it on
we need to test anything we want that has to last 3 weels or less
anybody know what i can test?
please help
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The best you can do is to grow a large single crystal of alum. You can get a beautiful coloured crystal if you use potash alum.
It is quite easy if one is careful about clean equipment, water used, and a dust free, vibration free location. Fairly large crystals can be grown within three weeks. If one is ambitious crystals of alum in different shades can be grown parallely using varying compositions of chromium ions.
This site gives details:
http://chemistry.about.com/cs/howtos/ht/alumcrystal.htm
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