Bradley's Inquiry-Popcorn

1. Why does popcorn pop?

2. http://www.hometrainingtools.com/popcorn-science-project/a/1561/ http://www.popcorn.org/ForTeachers/TeachingGuide/WhatMakesPopcornPop/tabid/88/Default.aspx 3. Hypothesis: Popcorn pops because the heat makes it pop.  

4.

5.  It burnt the glass.  Then it cracked the popcorn.  Last we saw steam and water go up the tube.  

6. My hypothesis was right. The heat goes inside the popcorn and steam comes out. There is water in the middle of the popcorn. The steam goes up and the pressure opens it.