Laugh it up in the name of science! Kids will have great fun making their own pranks. The kit contains over 20 different activities from concocting a stink bomb to making itch powder from scratch. Kids make a repulsive severed finger, mix pranks powder, and turn water solid. The science guide reveals the secrets behind the pranks while encouraging social skills. Guaranteed laughter! Great for science fairs and family fun! Copyright 2005 Scientific Explorer, Inc. All Rights Reserved. Availability: Usually ships the next business day. A220 FREE GROUND SHIPPING ON ALL ORDERS OVER $75.00. Please entry FREESHIPPING in the coupon box on the second page of the checkout. Offer valid for the 48 contiguous states. Certain oversize and drop ship items are excluded.