Learning About Heat

Learning About Heat Encylopaedia Britannica Junior Films Two teenage boys & a girl throwing snowballs in front of house, MCU making snowballs w/o gloves. Weighing beaker of ice as it melts on balance scale. CU of weights. 16:48:50 Fireplace, steam shovel digging. Snow-cat on mountain. 16:49:08 Woman reading, moving light out of room by moving table lamp. Reaching into refrigerator & getting ice cube tray. Ice poured into large bowl, put on burner. 16:49:45 Animated diagram of moving molecules dancing about. Heating ice & d diagram showing movement of molecules in melting. Boiling water w/ molecules given off into air (steam). 16:50:58 Heating wire w/ weight hanging from the wire showing expansion & contraction of wire. Animation. Measuring devices. 16:51:50 Blacksmith heating metal bar, animated diagram of heat passing from one molecule to another thru conduction. Puts asbestos gloves in fire to show poor conductor of heat. Boy w/ wool scarf in snow (poor conductor of heat so keeps warm). Convection heating of air moving tin foil. 16:53:06 Diagram of room showing movement of air from radiator. Boys look at sun thru filter, animation or diagrams of rays moving thru space as radiation. Radiating bulb causes heat to make thermometer rise. Icicles & snow ball fight. The End Gag, Oddities, Science Film, Chemistry, Physics; Educational Film; NOTE: Any continuous one minute sold at per reel rate.