The meniscus falls, then rises. 25-2.1 A thermometer inserted in hot water shows a drop in temperature as the glass expands before the liquid warms. A bulb with a small bore tube. A manometer is surrounded on one side with ice water and on the other by steam. H-27 A number of test tubes filled with various liquids are immersed in a hot water bath.
Expansion is magnified by small bore tubes.
Use a 100 ml quartz flask and 1 mm bore capillary tube for a meniscus drop of 5 to 6 mm. The familiar Hope apparatus. A hydrometer is used to measure the density of olive oil as it cools.