Harbottle
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- Harbottle
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Product Details
Help students understand the meaning of fluid pressure and pressure reduction. A Harbottle is a round glass container with a balloon inside and stretched over its opening. A hole in the flattened base is fitted with a rubber stopper. Students are amazed when the balloon remains inflated inside the bottle even though it is not tied off or sealed. Includes instructions. Grade 7 and up. Balloon not included.
