Exploratorium
Exploratorium: Science Snacks: Indicating Electrolysis
This experiment and video demonstration shows how students can break up water into hydrogen and oxygen gas with a simple electrolysis device.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: University of Colorado: P H Scale
Review examples of macro and micro pH scales of a variety of substances available in a drop down menu. Create a solution to measure.
NASA
Nasa: Climate Kids: What Is Happening in the Ocean?
Find out why the oceans on Earth are so vital to the cycling of matter and energy through its spheres.
Khan Academy
Khan Academy: P H, P Oh, and the P H Scale
Definitions of pH, pOH, and the pH scale. Practice calculating the pH of a strong acid or base solution. Learn the relationship between acid strength and the pH of a solution.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Streams and Water Quality
In this activity, students will measure stream velocity, sediment load, and the pH of the water.
American Chemical Society
Middle School Chemistry: P H and Color Change
Learn about color change and pH as it relates to chemical changes.
CPALMS
Florida State University Cpalms: Florida Students: Cooking With Chef Ragu: Acids, Bases, & Salts
Learn what makes a substance an acid or a base. Learn how salts are formed.
Famous Scientists
Famous Scientists: Arnold Orville Beckman
A short biography about Arnold Orville Beckman, once considered to have revolutionized the study of chemistry and biology with his work in bioscience instruments.
TeachEngineering
Teach Engineering: Acid Attack
In this activity, students explore the effect of chemical erosion on statues and monuments. They use chalk to see what happens when limestone is placed in liquids with different pH values. They also learn several things that engineers...
TeachEngineering
Teach Engineering: Not So Neutral Views
Students are introduced to acids and bases, and the environmental problem of acid rain. They explore ways to use indicators to distinguish between acids and bases. Students also conduct a simple experiment to model and discuss the...
US Environmental Protection Agency
Epa: Water: Environmental Topics: Water Topics
Find out how EPA research supports efforts under the Clean Water Act and Safe Drinking Water Act.
CK-12 Foundation
Ck 12: Plix: Scale Distances or Dimension: P H Concept
[Free Registration/Login Required] Arrange the items shown next to their corresponding pH value on the scale.
CK-12 Foundation
Ck 12: Plix: Acids and Bases in Biology
[Free Registration/Login Required] Interactive shows a graph illustrating the effect of pH on pepsin's reaction rate.
CK-12 Foundation
Ck 12: Plix Series: Properties of Acids and Bases
[Free Registration/Login Required] Drag different characteristics of acids and bases to the correct location on the interactive table. After the activity, answer one challenge question to check for understanding.
CK-12 Foundation
Ck 12: Physical Science: P H Concept
[Free Registration/Login may be required to access all resource tools.] Definition of pH and the strength of acids and bases. How to use the pH scale and why pH is important to living things.
Chem4kids
Chem4 Kids: Acids & Bases
This Chem4Kids site provides a general overview of acids and bases, and their use in chemistry. Content focuses on "names to know" and how acids and bases work.
Sophia Learning
Sophia: Calculating P H
A video tutorial demonstrating how to calculate the pH of a solution given the hydrogen ion concentration. [3:44]
![Sophia: Converting Among P H, [H+], P Oh and [Oh ] Unit Plan](https://content.lessonplanet.com/knovation/original/218736-4f79e25d5f5c2bcb250d718e8ac1dcc2.jpg?1661182808 "Sophia: Converting Among P H, [H+], P Oh and [Oh ] Unit Plan")
Sophia Learning
Sophia: Converting Among P H, [H+], P Oh and [Oh ]
This video screencast shows how to convert among pH, [H+], pOH and [OH-], providing several examples. [7:30]
Sophia Learning
Sophia: P H Scale
A video tutorial introducing the pH scale as a representation of the concentration of protons. [4:45]
Chem4kids
Chem4 Kids: Quiz: Acids and Bases
A quiz testing your knowledge of acids and bases. Quiz gives immediate feedback on whether your answer was right or wrong with an explanation.
Museum of Science
The Atom's Family: Fruity Electricity
Frankenstein's electricity is out. In this activity, students help him find another source of energy using citrus fruit. Good for students who want to do their own projects or for class lessons.
Other
Idaho Department of Environmental Quality: Common Water Quality Measures
An organized resource highlighting properties of freshwater and water quality concerns.
US Environmental Protection Agency
Epa: Measuring Soil P H
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.
US Environmental Protection Agency
Epa: Soil Buffering Experiment
Use this site to explore the experimentation process of "Soil buffering."