The learner reviews steps in analyzing a process and applies them to a situation in his/her own work or personal life.

Students observe the operation of a tri-state buffer used in digital electronics. A brief quiz completes the activity.

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

Learners observe how a blood drop in flight continually accelerates and increases in velocity over time. As the drop falls, resistance accumulates. The increase in stain diameter relative to distance of a typical 50 ml drop of blood is represented here. This activity has audio content.

Learners observe that the volume of one mole of any gas is 22.4 L at standard temperature and pressure. An illustration shows that only the mass of the molar volume differs with the identity of the gas.

Learners take a close look at the Edison Wire System and observe how the current values through the two lines and the neutral of the system change as the loads vary.

In this animated activity, learners observe how a two-roll metering system operates.

In this learning activity you'll explore normal distribution and enter values for the mean and the standard deviation of normally distributed data and observe the resulting changes in the shape of the normal curve.

In this animated object, learners observe the voltage on a capacitor at various time constants when it either charges or discharges. Students then answer questions in the categories of Identify, Compare, and Compute.

In this animated object, students observe how the pulsating DC output voltage of a full-wave rectifier is filtered by a capacitor.

In this learning activity you'll observe how computers operate in a client-server network operating system and consider the advantages and disadvantages of such a system.

Learners examine an animated motion-controlled robotic arm and observe the operation of a PID (Proportional-Integral-Derivative) control that makes movements quickly without overshooting or having a steady-state error. This activity has audio content.

In this learning activity you'll observe information and formulate an evaluation that includes diagnosis and microorganism identification.

In this animated activity, learners observe how a viscometer operates.

In this animated object, students observe how ATP energy is used to move substances across the cell membrane from an area of lower concentration to an area of higher concentration and when something too large needs to get in or out of a cell.

Learners observe current flow throughout the series portion and branches of a parallel circuit. This animated activity includes calculations and a short quiz.

Learners calculate gas density from the standard molar volume and observe how the density increases with the increasing molecular weight of the gas.

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.

Learners observe that the melting of a solid and the freezing of its liquid occur at the same temperature. The melting point is an intrinsic property and is used to identify a substance.

In this learning activity you'll observe how switches are used in local area networks to increase data transmission speeds.