Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun...

What will it take to explore space? Teams of pupils determine the needs of a lunar outpost and research the required systems. The pupils then learn about the past space exploration vehicles. The third and final lesson challenges project...

The first STEM lesson in a group of 10 explores composting. After discussing how to make a better tomorrow, classes are challenged to track garbage in their communities, visit a local waste management facility, and conduct a survey...

A video tutorial introducing the pH scale as a representation of the concentration of protons. [4:45]

This lesson focuses on acids and alkalis including acidic and alkaline solutions, neutral solutions, indicators and the pH scale, the colors for litmus paper, and a link to a test.

[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.

This lesson will introduce the concept of pH, acids and bases. It is 3 of 3 in the series titled "pH Scale."

Bases are substances that can react with acids and neutralize them. Alkalis are bases that are soluble in water. The pH scale measures how acidic or alkaline a substance is. Substances with a pH lower than 7 are acidic, those with a pH...

This lesson focuses chemical reactions using acidic and alkaline solutions, the pH scale which measures the acidity or alkalinity of a solution, and how to use a pH meter. A link to an assessment is also provided.

[Free Registration/Login may be required to access all resource tools.] Solutions, acids, and bases are the focus of this lesson. The use of the pH scale to identify acids and bases is covered as well.

Learn what makes a substance an acid or a base. Learn how salts are formed.

[Free Registration/Login may be required to access all resource tools.] The causes and effects of acid rain.

This activity introduces students to the complex chemistry of estuarine water. Students investigate how chemical and physical water quality factors-pH, temperature, dissolved oxygen, and salinity-change and interact over varying time...