Space & the Universe
Create a weightless environment here on Earth
Experiment with sound (or lack thereof) in a vacuum
A simple home experiment can mimic the light-bending effects of dark matter
Get ready to amaze your friends with this one! They will watch in awe as you use magical powers (ahem, physics) to command a packet of ketchup to rise, sink, and levitate....and it obeys you.
Did you forget to pay the gravity bill this month? That's what people will think when they see your Greek Waiter's Tray defy gravity.