The pH scale

Acids and bases combine to create our most popular shampoos—who knew?! Using the eighth lesson in a 24-part series, your classes study how acids and bases combine to create safe mixtures such as those in your scholars' shampoos. They...

Did you know strong bases can feel slippery and slimy? Lesson allows scholars to practice using the pH scale to identify acids and bases and their strengths. By changing the concentration of an acid and a base, they create the entire...

Most things naturally strive for balance, and acids and bases are no exception. Neutralization of acids and bases allows scholars to explore the color changes associated with the pH scale. After this exploration, pupils neutralize two...

Young scientists review the pH ranges that support a variety of water-dwellers. They measure the pH of various household liquids and then consider whether or not the organisms could survive in such liquids. This simple activity could be...

Students explain why farmers and gardeners may add nutrients to the soil to raise the pH level. They examine the pH scale. They make observations, collect and analyze data and draw a conclusion based on the data.

Scholars dicover the fact that they do not have to live on a farm or own a garden to do an agricultural science project. They research agriculture by using their reading skills and creative thinking. Next, they identify and analyze how...

Sixth graders correctly identify items as acids or bases by using a pH test, list the common properties of acids and bases and explain the pH scale.

Fourth graders compare the color of cabbage water when acids and bases are mixed in. In this acids and bases lesson plan, 4th graders use cabbage water and mix in acids and bases that the teacher prepares before hand. They observe the...

Students investigate acids, bases,and pH. They test the acidity and basicity of various household items using litmus paper. Using their results, they rank the substances according to pH and identify the contributing chemical on the label.

What is pH and how is it measured? What happens when acids and bases mix? In an extensive 5E experiment and lesson, young chemists create their own pH paper, test the pH levels of several substances, evaluate their results, develop and...