Using the natural pH indicator of red cabbage juice, groups determine the pH of different everyday liquids. As they work, pupils gain an understanding of pH that may help deal with contaminants in the water supply. 

Ozone, made of three bonded oxygen atoms, is found 15-30 km above Earth, has a strong smell, is blue, and blocks sunlight from hitting the surface of Earth. The 22nd lesson in a series of 36 specifically focuses on the important elements...

What common chemical includes safety warnings for being harmful if swallowed or inhaled, causes serious eye damage, and needs to be cleaned up immediately if spilled on the floor? Surprisingly, the dangerous chemical turns out to be...

As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...

Students explore pH levels of different substances. In this lesson about pH, students work together in three to four groups to test substances. moving between three different stations performing tests on the substances to determine...

In this activity, learners review the definitions of acids, bases, and salts. They also describe the differences between acids and alkalis and define neutralization. This activity has two short answers and one problem to solve.

Students study acidic and alkaline balance. For this acid and pH levels lesson, students read information about pH, the formation of acid rain and its impact on environments. Students then complete an experiment to learn about the...

In this equilibrium worksheet, students solve nine problems related to acids, bases, buffers, ionization and calculations of pH.

Students develop an understanding of how aspirin works and how understanding it's interaction with other chemicals in the body aided doctors in medical research. They complete a lab that compares the reaction of regular aspirin and...

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.

Students understand the dynamics of acid rain and its impact on the living and non-living environment. They hypothesize how acid rain affects water pH levels in two lake systems with differing watershed features.

In this acids and bases worksheet, students read about the differences between acids and bases and then complete a table comparing the characteristics of both. Then students determine if the given statements describe an acid, base, or...

In this titration learning exercise, high schoolers read about titrations or neutralization reactions used to determine the concentration of acids or bases. They are given sample problems used to find the concentrations of acids or...

How does carbon dioxide affect the world's oceans? The final installment in a series of six lessons has pupils research ocean acidification, then conduct an experiment to witness the delicate balance that exists in our seas. Materials...

Young scholars describe characteristics and common uses of acids and bases. They describe the role of natural indicators in the chemistry of acids and bases after testing and making observations on a variety of plant extracts. Students...

Young scholars list the common properties of acids and bases. They classify substances as acids or bases, by using pH and litmus tests and are able to explain the pH scale. They participate in a lab activity which reinforce their...

Ninth graders study pH, acids, bases, and neutralization. They discuss and apply principles of neutralization to everyday situations (bee stings, indigestion remedies, soil acidity, etc.). They carry out several experiments using acids...

Students explore acids and bases and the process of neutralization.T hey practice volume measurements and observe the neutralization of an acid directly through bubble formation and indirectly through indicator color changes.

Students test the pH of soil samples they collected from the field trip. In this chemistry instructional activity, students differentiate acids and bases. They write a lab report about the experiment.

In this thermometric titration worksheet, students determine the concentrations of hydrochloric acid and ethanoic acid using a titration where they measure the temperature of the solution as it is titrated. The equivalence point is found...

Emerging chemists find their calling as they calculate the concentration of hydronium and hydroxide ions and the pH and pOH for several solutions. In some cases, values are given, and in others, actual word problems are written out....

In this acid and base instructional activity, students review the characteristics of acids and bases, how to calculate pH of a solution, and define a buffered solution. This instructional activity has 16 multiple choice questions and 3...

In this acid base instructional activity, students calculate the concentration of solutions as products of acid and base reactions. This instructional activity has 9 problems to solve.

Chemistry stars calculate ion concentrations, pOH, or pH in different solutions. For questions in the latter half of the learning exercise, they also have to explain why a solution is acidic, basic, or neutral and solve for molarity of a...