Description
- Differentiate between heat and temperature
- Calculate heats of reaction from standard heats of formation
- Design a hot pack and cold pack
Grades 9–12. Students discover how chemical and physical changes can absorb and release heat energy. After measuring the heat of combustion for a common fuel and the heats of solution for some common salts, students design a hot pack and a cold pack that could be used as a portable first-aid device.
Part of the Inquiries in Science™ series. Materials are sufficient for 30 students working in groups of 3.
Includes
- 1 Ammonium Chloride, 500 g
- 1 Calcium Chloride, 500 g
- 10 White Candles
- 1 Heater Meal®
- 16 Steel Wool Pads
- 2 White Vinegar, 500 mL
- 100 Filter Paper