Atomic weights are used to convert the mass of a sample into the number of moles of the element in the sample and vice versa. Four examples are provided for practice.

With this highly entertaining four-minute animation, learners can visualize the basics of accounting.

In this learning activity you'll analyzes the structures and processes of religion within a global context.

Learners match the names of parasitic organisms to the diseases they cause and the modes of transmission.

Learners test their knowledge of fungal diseases by completing six exercises.

In this learning activity you'll create a free writing document on a topic.

Learners study the properties of a regular square pyramid and use geometric formulas to find volume and surface area.

Learners study the properties of a right circular cone and use geometric formulas to find volume and surface area.

In this learning activity you'll examine strategies to help you deal with tricky personal and business communication situations.

Giving gifts is an important part of conducting business around the world. Learners read about the kinds of gifts that are welcomed in various cultures, and which are not. A quiz completes the activity.

In this animated object, students examine the role that the solubility of water plays in various biological functions.

In this activity, you'll distinguish between sexual harassment facts and fiction.

You'll practice calculating your time with regards to the economic concepts of scarcity and choice and positive vs. normative economics.

Learners complete two exercises. In the first quiz, they divide viruses into two categories: RNA and DNA. They later match each virus with the disease it causes.

In this learning activity you'll complete eight methods of making decisions by identifying advantages and disadvantages of each method.

In this learning activity you'll match definitions of motivational terms with terms and concepts found in a puzzle.

Students view a world map and click on a country or continent to read about how the people there view time. A brief quiz concludes the activity.

In this learning activity you'll review a conclusion and decide how effectively it summarized a speech. You'll also gain some tips for writing your own speech conclusion.

In this learning activity you'll place given vectors in correct positions on the Cartesian coordinate system.

In this learning activity you'll read about efforts to prevent the government from interfering with citizens' rights to practice their religious beliefs.

In this interactive object, learners examine the structural-functional, social-conflict, and symbolic interaction analyses of sports. A mind map and quiz questions are included.

In this learning activity you'll differentiate between the five contexts affecting communication.

In this colorful, interactive object, learners examine how materials on the nanoscale compare with those on the macroscale. The focus is on the difference between macroscale and nanoscale gold in both color and melting point.

In this fourth part in a series, learners follow the steps of the “mathemagician” to examine three numerical curiosities: Be a Psychic by Predicting Birthdays, Predict a Card with Mind Reading, and Predict the Three Die Values Your Opponent Has Rolled. Learners will also study palindromic numbers and look at two alphametric puzzles.

Students read about the use of business cards in various countries and the customs that Americans should follow when presenting a card in those parts of the world.