We did a little pine cone experiment that I first saw here.
We put one pine cone in cold water and then hot water because I couldn't remember if it was the temperature or the wetness that caused the pine cone to close. Ha!
We concluded that it was the wetness and not the temperature that caused the pine cones to close, but apparently it's a little more complicated than that.
So, a more ideal experiment would be taking an open pine cone and putting it in water and then sticking it in a aluminum-covered pan and heating it at 200 degrees like mentioned here.
1 comment:
I saw this experiment in my Janice Van Cleave's Science around the year. It talks about humidity but they don't mention anything else. Who knew that there were male and female pinecones!
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