Students view a dc analysis of a base-biased NPN transistor.

Students read different definitions of "acids" and "bases." In an interactive exercise, they identify if a substance is an acid or a base.

Learners examine how CEC, base saturation, and soil pH work with each other to define plant nutrient availability.

Students read and test themselves on the conditions that cause specific acid/base imbalances.

In this interactive object, the learner matches various disorders to the acid-base disturbances they cause.

Through the use of symbols and words, the learner reviews the etiologies, symptoms, and treatment of respiratory and metabolic acid-base disturbances.

Students read about how acid/base balance affects a person's health. This activity includes animation.

Learners read a general description of the function and structure of leaves and examine drawings and microscopic views. A matching exercise completes the learning object.

In this animated object, learners view hydrogen and hydroxide ions in a solution. A brief quiz on the basic principles of the term pH completes the activity.

Learners view several movie clips that demonstrate the use of an indicator to follow the neutralization reaction that occurs when an acid and a base are mixed. Students test their knowledge in a series of questions. Immediate feedback is given.

In this learning activity you'll examine a systematic method for converting a decimal number (base 10) into a binary number (base 2).

In this animated object, learners examine a systematic method for converting a decimal number (base 10) into an octal number (base 8).

In this animated activity, learners examine a systematic method for converting a decimal number (base 10) into a hexadecimal number (base 16).

Students review the spelling rules for adding a suffix to a base word. They practice changing the "y" to "i" for some of the words that end in "y."

Students read about the three categories of interest groups: Economic, grass roots and community-based, and civil and constitutional rights.

Users calculate the tonnage required to punch holes in a specific base metal. The formula to be used is provided along with the tensile strength for various metals. A calculator is required.

Learners tackle this interactive learning object after studying the mathematics of buying. This activity ties together the ideas of net cost, list price, trade discounts, cash discounts, net cost equivalent, and single discount equivalent, as well as the concepts of part, base, and rate.

Instructors complete a simple, informal inventory that helps them to see how they use the Seven Principles of Good Practice in Undergraduate Education developed by Chickering and Gamson (supported by AAHE, ACE, Johnson and Lilly foundations) in 1987.

Learners use the Base Minus One Complement method to do octal subtraction.

In this learning activity, you'll discover and then follow established rules when naming database objects.