In place of the usual Friday joke, I wanted to share with you a few ways that science professors are spicing up their regular lab experiments to get in the holiday spirit. Here are some ideas using simple chemistry or physics to get the desired spooky effect.
One favorite is the Pumpkin Pendulum:
Conservation of Energy: Energy cannot be created or destroyed, only changed from one form to another.
A pendulum with a pumpkin as a bob is used to demonstrate the conservation of energy. The pumpkin is supported from the ceiling with a rope. A volunteer stands with back against the wall. The pumpkin is brought back to the volunteer’s nose and then released. The trick is to remain motionless with your eyes open as the pumpkin first swings away and then returns.
With your back against the wall, hold the pumpkin so that it just touches the tip of your nose. Now with your eyes wide open, release the pumpkin and wait for it to return.
You can find this and more Halloween-themed labs such as the Pumpkin Pendulum and Green Slime at the following links: