Learners examine the various classifications of airspace and the requirements to pilot an aircraft there. A quiz completes the activity. This object has sound.

Learners view an animated presentation showing how the pH level of a cleaning solution is controlled in a closed-loop system in a manufacturing setting. A quiz completes the activity.

THE EGYPTIAN GODS ARE CONTROLLED BY THE SPHINX OF RIDDLES ANSWER THE RIDDLES AND SAVE EGYPT!

This tests your knowledge of the hormones: function (target cells), produced by organ (cells), controlled by (hormone, nerve, humoral), description of condition caused by hyper/hyposecretion. Includes releasing hormones, pituitary hormones and other endocrine hormones but not digestive hormones

Biología

Devices & Appliances controlled production

A baseball game controlled on your knowledge of the Spanish present tense

This animated lesson shows how a pressure switch connected in a ladder circuit causes the cylinder of a hydraulic circuit to extend and retract.

In this animated object, learners examine the ratio control method used in automation when two or more ingredients are mixed. A brief quiz completes the activity.

Guess the word! Each word will have an r-controlled vowel.

In this animated activity, learners examine the operation of the SCR, including how it is biased and how it is turned off. A brief quiz completes the object.

Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.