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Interactive
Other

Usda: Virtual Labs: The P H Scale & Meter Calibration

For Students 9th - 10th
In this virtual science lab, students learn how a pH scale works and how to calibrate a pH meter.
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Interactive
Other

Usda: Virtual Labs: Testing and Adjusting P H

For Students 9th - 10th
In this virtual science lab, students learn how to control the pH level in salsa to prevent the growth of a dangerous bacterium.
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Activity
Museum of Science

The P H Factor

For Students 3rd - 8th
This is a great source of chemistry experiments and information dealing with pH. Learning objectives are provided to explain the basis for each activity. Japanese and Chinese versions are also provided.
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Handout
Science is Fun

University of Wisconsin: Exploring Acids and Bases

For Students 9th - 10th
Get a brief overview of acids, bases and pH. Explore the pH of a number of different household substances using an extract of red cabbage.
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Activity
US Environmental Protection Agency

Epa: Measuring Soil P H

For Teachers 3rd - 5th
This site has an experiment to find out how to measure the pH of your soil. The soil pH is an important condition that can affect the health of plants and animals.
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Activity
US Environmental Protection Agency

Epa: Determining the P H of Common Substances

For Students 6th - 8th
In this acid rain experiment the students will be "determining the pH of common substances." This is a great lesson plan for an experiment.
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Activity
US Environmental Protection Agency

Epa: Making a Natural P H Indicator

For Teachers 3rd - 8th
At this site you will find a step by step process for making a natural pH indicator. One of the main materials you need to have on hand is a red cabbage.
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Activity
US Environmental Protection Agency

Epa: Measuring P H Experiment

For Teachers 9th - 10th
This is an activity that deals with acid rain. "This experiment will illustrate how to measure the approximate pH of chemicals in water using a pH indicator." It is easy to follow the comprehensive set of directions.
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Activity
US Environmental Protection Agency

Epa: Measuring the P H of Natural Water

For Teachers 6th - 8th
How acidic is your water? "In this experiment, you will measure the pH of natural water located near your home or school."