Classroom Resources: Acids & Bases


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  • Observations, Chemical Change, pH, Acid Base Reactions, Chemical Change | High School, Middle School

    Lab: How do Sinkholes Form?

    In this lab students will learn how acidic groundwater reacts with limestone, causing it to erode. Sinkholes form when eroded limestone underneath the surface of the earth can no longer support the ground above it. Students will test how acid reacts with a variety of rocks and determine which rocks would be best to build a city on top of in order to reduce the chance of sinkholes forming.

  • History, pH, Acid & Base Theories, Strong vs Weak | High School, Middle School

    Activity: Acid & Base Guys Video Questions

    In this activity, students will watch a video about the history of acids and bases. They will learn about the evolution of these theories, from Lavoisier to Arrhenius, Bronsted-Lowry, and Lewis.

  • Interdisciplinary, pH, Indicators | High School, Middle School

    Lab: Exhaling Acid

    In this lab students will observe how increased carbon dioxide levels lead to a build-up of acidic conditions.

  • pH, Indicators | High School, Middle School

    Lab: Cellular Respiration and pH

    In this lab, students learn how a pH indicator can be used to detect the presence of CO2 when they exhale.

  • History, pH, Acid & Base Theories, Strong vs Weak | High School, Middle School

    Video: Acid & Base Guys Video

    This video tells the story of how the definition of acids and bases has evolved from Lavoisier, to Arrhenius, Bronsted-Lowry, and Lewis.

  • Chemical Change, pH, Acid & Base Theories, Strong vs Weak, Mixture, Salts, Ions, Conductivity | Middle School

    Lesson Plan: Why Drink Gatorade?

    In this lesson, students will test different flavors of Gatorade and other liquids to investigate acids and bases. This will take several days unless students already know about acids and bases.

  • Chemical Change, Physical Change, pH, Identifying an Unknown, Acid Base Reactions | Middle School

    Lab: Is It a Hoax

    In this lab, students will perform tests on the physical and chemical properties of different substances to determine the identity of the unknown.

  • pH, Indicators | Middle School, High School

    Lab: Detecting pH of Commonly Used Acids and Bases

    In this lab, students will use their knowledge of acids and bases to determine the acidity and basicity of every day items by measuring pH using several different methods for determination. Indications of pH may be determined using red & blue litmus paper, pH strips, and pH probes or pH meters.

  • Chemical Change, Gas Laws, Pressure, pH, Acid & Base Theories, Indicators, Solubility Rules | Middle School

    Lesson Plan: Chemistry of Pop Rocks

    In this lesson, students will determine the pH of several liquids with litmus paper or a pH probe. Next, students will explore how pH affects the production of gas with Pop Rocks. Students will also investigate how Charles’ Law affects Pop Rocks. Finally, students will design their own experiment with Pop Rocks.

  • Acid, pH, Indicators, Chemical Properties | Middle School

    Lab: Acid & Base

    In this lab, students are given four unknown liquids and must identify whether they are acids or bases.

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Subtopic: pH

Grade Level: Middle School

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