Perfect for a classroom!
This one is so easy!Just pour some liquid into the cup.Hint: a drop of food coloring in plain water will make the liquid show up better!Then place an ordinary piece of paper (folded up copy paper works great) on top of the cup. Turn the full cup upside down on your hand.Slowly slide the paper away from the cup. Your audience will expect a big mess- they expect all of the liquid to drop out of the cup. After all- gravity, right?? But the liquid stays suspended in the upside down cup!Then place the paper back on the cup, turn it rightside up- and THEN pour out all of the liquid again!
This is a great trick for presenting in front of a group.Do this one in a classroom or in front of an audience.
This effect uses real liquid, so be aware that there might be some spilling (as you see in the demo).
You supply the liquid and the ordinary paper.You may want to use a measuring cup or other cup to help pour the water.It is also recommended that you use a tray or towel to catch any stray drops of liquid.
May be packaged as WATER TRAP or TRAPEZOID WATER VASE.This is the same trick with different packaging.