In this screencast, learners examine the kinds of physical and chemical changes that occur in substances.

In this interactive object, learners select the correct description of a child in the five stages of development in the following categories: pattern of growth, vital signs, organ development, vision and hearing, and developmental stage.

Learners review normal conditions that are associated with aging. Changes are highlighted in the cardiovascular, musculoskeletal, respiratory, gastrointestinal, urinary, reproductive, endocrine, nervous, and sensory systems.

Learners are shown the effect that too much stress can have on various parts of the body.

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

Learners read about the six levels of the psychomotor domain taxonomy and quiz themselves on a basic understanding of the content.

Learners examine how a linear displacement transducer is used to measure the linear position of a physical object. Animations show the sequential steps of the entire operation.

Learners listen to a lecture given during the early days of nanotechnology titled, “There’s Plenty of Room at the Bottom.” Dr. Richard Feynman made the presentation to the American Physical Society on December 29, 1959. Animation makes this lecture fun to absorb.

In this screencast, learners examine the physical facets that determine the value of a capacitor.

In this learning activity you'll explore the physical construction and operation of single-mode and multi-mode fiber-optic cables used in networking.

The learner will identify ways to overcome barriers to critical thinking and problem-solving including false memories, personal biases and prejudices, and physical and emotional hindrances.

This learning activity describes the physical properties that affect the inductance, in henries, of an inductor.

Learners observe how an optical pyrometer is used to take temperature measurements without making physical contact with the object being measured.

In this learning activity, you'll examine the different ways in which computers and other equipment are physically connected in local area networks and the advantages and disadvantages of each topology.