For this Endothermic and Exothermic Reactions Lab, students will perform two chemical reactions and measure their temperatures. The first reaction is that of vinegar and baking soda and the second is with hydrogen peroxide and yeast. These are simple and excellent examples of endothermic and exothermic reactions as the temperature changes are dramatic. The students will collect the temperature data using a stopwatch and then graph the data and answer 6 analysis questions.
The lab involves simple materials… each group will need: 1 small beaker (50 mL) , 1 stopwatch, 1 thermometer, 1 small bowl or beaker with baking soda and a teaspoon (I put these materials on a tray for each group). On a front table of the classroom, I put a large beaker with vinegar and some bottles of 3% hydrogen peroxide (just drugstore strength). I hold onto the envelope/container of yeast.
Teacher notes, graph and analysis questions keys, and scientific explanations for the reactions are included.
This lab pairs well with my Endothermic Exothermic Cornell Doodle Notes!
Thanks for looking!