Pepper Trick

Effect: 

Magician has cup with pepper and water.
Volunteer puts fingers in water trying to separate the pepper - nothing happens.
Magician puts fingers in water and the pepper separates.

Supplies: 

• Water
• Soap
• Pepper
• Cup
• (make sure there is a sink nearby so volunteer can wash hand)

Secret: 

Put water in a cup then regular pepper.

Before show, rub soap on your fingers -- don't let anyone see you do this.  (The soap will separate the pepper)

Source : http://www.kidzone.ws/magic/pepper_trick.htm