Toasty Marshmallow Lab

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Presentation transcript:

Toasty Marshmallow Lab Purpose: Observed chemical changes caused by changes in energy. Background: Define endothermic and exothermic change. Data: Temperature of Water Before Temperature of Water After

Toasty Marshmallows – p73 Add 20mL water to an empty soda can and record temperature. Place the mini marshmallow on the paperclip contraption. Hold the can of water over the marshmallow. USE TONGS. Light the marshmallow and wait for it to completely burn. Record the temperature of the water.

Toasty Marshmallows Analysis Conclusion: Use paragraph format and address all questions. Did the temperature of the water change? Why? What evidence of a chemical change did you observe? What kind of energy was released? Where was the energy originally stored? Was the reaction exothermic or endothermic?