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

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 density for a given sample of soil or aggregate based on the mass-volume relationship.

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).

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

Learners examine eight different kinds of faulty logic or perception that interfere with critical thinking. They are superstition, ignorance, clustering illusion, false analogies, gambler’s fallacy, irrelevant comparisons, post hoc fallacy, and slippery slope fallacy. In an interactive exercise, learners identify ways to overcome these barriers.

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.

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

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

In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.

Learners answer eight questions about capacitors. Help pages are available.

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

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

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

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.

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.

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

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.

Students analyze the eight single variable Boolean theorems and their expressions.