Practical: Small round bottomed flasks with glass tubes and bungs.
Demo :
Air = Large Round bottomed flask with long glass tube inserted into a bung (located in the same container as the liquid demos) + 1L glass beaker
Solids = Ball & ring, Bar & Gauge (Tray 6B1) Lighter
Liquids = Small round bottomed flasks (with bung and glass tubing already fitted) containing paraffin, water & methylated spirit placed in 1L glass beakers + kettle