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...

Learners 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.

Learners use a Colorimetric test to measure pH and gain the importance to life in an aquatic ecosystem pH is. They explore the dramatic effect pH level can have on a water body. Students test the pH level of many water samples.

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...

Middle schoolers participate in a science lab to determine the pH of three different soil samples. Students conduct an experiment by creating a question, a hypothesis and then an investigation of soil samples. Then they compare colors...

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...

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.

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.

Young scholars become aware of the environmental problems caused by acid rain and study the pH scale. They determine acidity of local rain water.