Page 24 - Demo

HEAT & THERMODYNAMICSSpecific Heat SetHeat up five metal cylinders to the same temperature, add each to an amount of water at known temperature and observe the temperature change. Students then calculate the specific heat of each metal and discuss calorimetry, specific heat and heat capacity. Includes instructions, background, procedure, tips and cylinders of aluminum, copper, steel, tin and zinc. Super Value Kit is complete for 10 student groups. Heat Transfer KitStudents learn about the flow and transfer of heat energy with this hands-on activity. Fill one insulated container with hot water and another with cold then link the containers with an aluminum transfer bar—heat transfer occurs across the bar. Students record temperature changes of the water over time and relate changes to the associated heat transfer. Includes aluminum transfer bar, insulated containers, thermometers and instructions.AP4536 I $25.40Heat and Temperature—Student Laboratory KitAt rotating activity stations, students compare metal thermal conductivity, investigate specific heat and calorimetry, study infra-red radiation heat transfer, explore heat absorbing and heat-reflecting properties and determine relative humidity to validate evaporation as a heat-removal method. Ball and ring apparatus demonstration shows expansion and contraction of metals in differ-ent temperatures. Includes instructions and Teacher Notes. AP7017 I $120.00Calorimeter, ElectricVersatile double-walled calorimeter with an electric heating element lets students deter-mine the electrical equivalent of heat. The spring heating element operates on 0–6 V DC and approximately 2–3.5 W. The 1.7-cm-thick polystyrene lining, plastic insulator ring and aluminum heat reservoir are designed to control heat loss. Reservoir has 150 mL capacity and a built-in thermometer cork. 10.5 cm diameter x 10 cm high.AP5347 I $35.00The Heat Solution Instant HandwarmerA vinyl pouch contains a supersaturated solution of sodium acetate. When pressure is applied to a metal activator, a seed crystal forms in the solution and triggers the entire solution to crystallize. As the solution changes physical state (liquid to solid), it increases in temperature to 130 ºF. The heat lasts for more than 30 minutes. The vinyl pouch can be easily regenerated and used over and over again.AP1933 I $8.50Specific Heat CylindersSet includes three cylinders—copper, zinc and aluminum. Hooks are not included.AP6112 I $40.30CATALOG NO.DESCRIPTIONPRICE/EACHAP92205 groups$41.15AP756610 groups74.60