Endothermic and Exothermic Reactions

North Branch High School, North Branch, MN modified from student teaching experience in the Fargo Public Schools
Initial Publication Date: September 9, 2009

Summary

This lab allows students to collect for different types of reactions. Students will then compile the data, create graphs and answer questions concerning their lab experience.

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Learning Goals

Students will differentiate between an exothermic and endothermic reaction using a graph.
Students will identify an independent and dependent variable.

Context for Use

NaOH (sodium hydroxide) will be used, so please follow all safety precautions. Students work with lab partners to complete the task. It will take approximately 1 hour (60 mins) to complete the entire lab with paper work (only 30 mins in a lab setting to collect data).

Description and Teaching Materials

Chemicals: Sodium Hydroxide, Ammonium Chloride
Thermometer, 50 ml, graduated cylinder, spatula, balance, stirring rod, safety, weighing paper

Use this lab when introducing chapter which covers chemical reactions. Endothermic and Exothermic Reactions (Acrobat (PDF) 2MB Sep9 09)

Teaching Notes and Tips


Assessment

Students will hand in completed labs and graphs to be graded.

Standards

MN 9.1.1.2.1 Scientific inquiry
MN 9.2.1.2.4 Chemical reactions

References and Resources