Check the listing for details. Expanding Soap Chemistry Demonstration Kit. Condition: New. Listed at 1.55 USD. Expanding Soap Demonstration Microwaving this "special" bar of soap results in it expanding to several times its original size! Contains: One bar of Ivory® soap and instructions. The bar could be cut in half (as shown) or quarters to do the demonstration multiple times. Shipping: USPS First Class Package or UPS Ground (please select UPS Ground when ordering multiple items) Liberty Scientific LLC offers chemicals for laboratory use only. Our chemicals are not intended or suitable for use as food or food additives, drugs (human or veterinary), cosmetic preparations, household use, or any unlawful purpose. Buyer assumes all responsibility related to the purchase, storage, use, and disposal of our materials, and to follow all applicable local, state, and federal laws and regulations.