Bubble Timer

Bubble Timer

$8.95
18 points (Avail: 0)
Item #: TIM-212
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This glass Bubble Timer is a beautiful display of physics, surface tension, and geometry! Just turn it over to watch the colored liquid displace the air in the bottom bulb, creating more geometric bubbles every time! Takes approximately one minute. Color may vary. About 20 cm (7.5 inches) tall.