This Instructable is not only my first... it is also for the Science Fair contest.
Step 1: The Parts
- A wall transformer ($4.77), which is available here on Amazon.com:
- Water ($0.00), which is usually freely available
- A bowl ($0.00 - $0.06), which can be replaced with anything that can hold water. A cheap bowl is available here on Amazon.com: http://www.amazon.com/Pfaltzgraff-Flower-Garden-Melamine-cereal/dp/B0001GUCCE/ref=pd_bbs_4/103-7672438-6241403?ie=UTF8&s=home-garden&qid=1188382928&sr=8-4
- A small water bottle ($0.00 - salvaged) or test tube ($24.99), which is available here on Amazon:
- Salt... optional