Classic activities such as apple dolls can take a seasonal twist and become shrunken heads while students explore related topics such as food preservation and dehydration.
Chicken bones lend themselves well to Halloween as well, in the form of gruesome bone wind chimes, which can lead to the exploration of sound waves and pitch, and also "rubber" chicken bones in which students explore the effects of an acid on the calcium in bones to create a fun twist on the skeleton theme.
Students can learn about owls and their dietary habits through owl pellet dissection. You can collect and sterilize your own pellets, or order some from an educational supplier.
Carving Jack O'Lanterns early on allows you to watch as they slowly decompose into Zombie Jack O'Lanterns. Use a magnifying class and/or microscope to examine the results up close.
Detailed instructions for these activities can be found at the following links:
bone windchimes
apple dolls and also, the "shrunken head" or "house elf head" verson of this activity
"rubber" chicken bones that can be tied in a knot
dissecting owl pellets
Also see my earlier blog post on Halloween Science
as well as my main Halloween Activity Index
my Strange Science page
and related Harry Potter Activities
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