Hand Bubbler

This Hand Bubbler magically demonstrates energy transfer in a cool, fun way! Hold it at the bottom and watch the liquid bubble to the top. Hold the bottom chamber in your hand and watch as your body heat warms the liquid. As it starts to vaporize, it expands moving it's way through the tubes to the upper chamber. When all the liquid has reached the top, a bubbling effect is created! Let go and the liquids cool, and move back down to the lower chamber. Great for science class! Made from glass in assorted colors. WARNING: Not intended as a toy for children. Contains Ethyl Alcohol. Avoid contact with eyes. In case of eye contact, flush thoroughly wiht water. If irrigation persists, get medical attention. Do not use near heat or flames. Only warn using your hand. Liquid will stain if glass is broken. Keep out of reach of young children....(click for less)

This Hand Bubbler magically demonstrates energy transfer in a cool, fun way! Hold it at the bottom and watch the liquid bubble to the top. Hold the bottom chamber in your hand and watch as your body heat warms the liquid. As it starts to vaporize, it expands moving it's way through the tub...(click for more.)