pH+Lesson+Plan+2


 * pH Lesson Plan **


 * Names and Contact Information: **

Corinne Brockel: ceb5192@psu.edu Hannah Nowotarski: hxn138@psu.edu


 * Grade Level and Topic: ** Grades 6-8, Environmental Aqueous pH Levels


 * Educational Standards: **
 * 3.5.7D- ** Explain the behavior and impact of the earth's water systems focusing on mainly the fourth bullet point. Compare the effect of water type and the life contained in them.
 * 3.7.7B- ** Use Appropriate instruments and apparatus to study materials.
 * 3.7.7C ** - Explain and demonstrate basic computer operations and concepts.
 * 4.1.7C- ** Explain the effects of water on the life of organisms in a watershed.


 * Instructional Objectives: **
 * 1) ** 1. ** Students should be able to identify different contaminates that affect the pH of water.
 * 2) ** 2. ** Students should be able to explain the importance of pH effects in water systems.
 * 3) **3.** Students should be able to explain ocean acidification and the different impacts of pH on environmental ecosystems.

The main point of this lesson is for students to explore the idea of pollution affecting the pH of different water systems. The concept of ocean acidification is going to be our main example considering it is a huge problem the Earth is facing today. By going over how to measure the pH of different water samples, students will gain a basic understanding of acid/base chemistry.
 * Content Explanation: **

To make this lesson easier, we will break the students into two different groups. Ms. Brockel will lead one and Ms. Nowotarski will lead the other one. Each group will have three different water samples: one neutral, on basic and one acidic. Each student will be able to use their own computer and a pH probe to collect data. For safety precautions, there will be no hazardous materials available for students use in this lab. The main precaution is to tell students to be careful with electronics and water. Students will be provided a written out procedure and we will be guiding them throughout the lesson.
 * Administrative Considerations:**

Each student will need a computer with pH analyzing software (Data Studio). Students will be testing three water samples that were collected prior to class. There will be about 2-3 students per computer and will be working groups during this lab. After collecting data students will collaborate on how contaminates affect pH in water.
 * Materials, Equipment, and Set Up: **


 * Body of Lesson:**
 * 1) 1. Engagement: Questions about activity/knowledge about pH
 * 2) a. What are possible sources of contamination in lakes, rivers, and oceans?
 * 3) b. What do you know about pH? What would have an acidic, basic or neutral pH? What pH do you think water would have?
 * 4) c. Introduction to pH – edited based on their responses to previous questions.
 * 5) 2. Exploration
 * 6) a. What factors do you think would affect drinking water?
 * 7) b. Students will be given 3 samples of water and asked to determine the pH of them
 * 8) 3. Explanation
 * 9) a. After collecting data, students will be asked to hypothesize what is causing these pH values for each water sample.
 * 10) 4. Evaluation
 * 11) a. Students will be asked what environmental factors would effect the pH of bodies of water, and how acidic or basic pH would effect the surrounding environment.