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Feathers+Oil=Trouble
Materials
Medium-sized
bowl, hot and cold water, dishwashing detergent, vegetable oil, three feathers, and cocoa
powder (optional).Instructions
Fill the bowl 3/4 full with water. To make the oil more
visible, mix a little cocoa powder with it. Then, pour some oil on top of the water and
wait for it to spread out. Dip the feathers in the bowl, imitating a bird landing on an
oil slick. Examine the feathers and then wash one in cold water, one in hot water, and one
with detergent and hot water. Examine the results.
Discussion Questions...
| 1. |
What
did the oil dip do to the feather? |
| 2. |
Which
washing method worked best? |
| 3. |
Could
this method be used to wash a real oiled bird? |
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Last Updated: 02/16/03
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