Learners examine ways to eliminate or minimize the wastes found in business processes. A matching exercise completes the activity.

In this animated and interactive object, learners observe how two, three, or four groups of electrons around the central atom cause the shape of the molecule to be linear, trigonal planar, bent, tetrahedral, or pyramidal. Seven examples and eight interactive questions are provided.

In this learning activity you'll explore the difference between mass and weight.

Learners read the definition of atomic weight and obtain the weights of elements by viewing the Periodic Table and charts that list atomic weights by name or symbol.

Students take a 13-question quiz to practice reading 25- and 50-division Vernier height gages.

Students read how to determine and calculate the void ratio for a given sample of soil or aggregate based on the weight-volume relationship.

Students read how to determine and calculate the saturated unit weight for a given sample of soil or aggregate, based on the weight-volume relationship. Practice problems complete the activity.

Students read how to determine and calculate the dry unit weight for a given sample of soil or aggregate based on the weight-volume relationship.

The learner will become familiar with eight principles of collaborative leadership to build a team where members find satisfaction and reward in their job.

In this learning activity you'll be introduced to the eight most common logical fallacies commonly used in persuasive speeches.

Students read how to determine and calculate the saturated density for a given sample of soil or aggregate, based on the mass-volume relationship. Practice problems complete the activity.

In this interactive object, learners review how to read a caliper. They then test their skills with eight practice questions.

In this animated activity, students read about weight-volume relationships within a given sample of soil or aggregate. They complete problems using a 3-phase diagram.

Ions are electrically charged particles obtained from an atom or from a chemically bonded group of atoms by adding or removing electrons. Eight examples illustrate the number of protons, neutrons, and electrons in positive ions (cations) and in negative ions (anions).

Learners examine a table of common polyatomic ions. Eight examples are provided for practice.

This interactive learning object demonstrates how the moisture content is determined for a given sample of soil or aggregate.

Students read how to determine and calculate the dry density for a given sample of soil or aggregate based on the mass-volume relationship.

Students read an explanation of the use of weight-volume relationships and practice calculating density.

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

The learner reads directions for finding the slope, intercept, and correlation coefficient for a group of ordered pairs using one of eight different scientific calculators.