Petrochemicals vs Essential Oils. My daughter took plastic and styrofoam cups (5 of each), 4 different essential oils, and water as a control. She hypothesized what would happen, which oil she thought would/wouldn't dissolve the cups, and how long it would take. She used Essential Oil University (http://essentialoils.org/), the Modern Essentials book, and Wikopedia to research essential oils and petrochemicals, particularly the symbols and charts that classify which type of petroleum product the cups were.
If you do this, make sure you have a tray or cookie sheet to hold all of the cups and a timer to help document the results. Clearly labeling each cup so that pictures are easily identified and holding the timer next to them is the best way to document this experiment. I let my daughter choose which oils, but I told her to pick at least one citrus (two to make it interesting). She chose to use cinnamon bark, lemon, wild orange, and wintergreen essential oils. When she displayed her project board, she took empty oil bottles for those oils and some of the cups to display.
It was also intersting to see what happened when we let the cups go for a couple of days. We both learned a lot about petrochemicals and essential oils working on this one.
On Friday, October 26, 2012 7:47:12 AM UTC-6, Jana Daley wrote:
--Anyone have any ideas for an 8th grade science fair project using oils? Or, a suggestion of someone to talk to.
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