In this animated object, learners follow an analogy of water flowing through pipes and valves to see how current increases in a parallel circuit as branches are added.

Students examine how voting rates are determined and how those rates change depending upon the population being studied. A brief quiz completes the activity.

Learners examine how metal detectors function. This object includes animation and sound.

In this learning activity you'll play "How to Really Be a Millionaire" to learn the basics of accumulating wealth.

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

Learners examine how vapor pressure is calculated. The vapor pressure of a liquid increases with increasing temperature. If the heat of vaporization and the vapor pressure at one temperature are known, the vapor pressure at a second temperature can be calculated.

This content gives the student a text and photo overview of feed rate calculations.

In this interactive learning activity, learners explore factors that contribute to the aging process. Learners calculate their age based on biological, psychological, and social experiences. Further reflection allows the learner to consider options and assess issues that impact the aging process.

In this learning activity you'll discover how to evaluate a problem statement using both the MEA and the IP Techniques.

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.

Learners examine how CEC, base saturation, and soil pH work with each other to define plant nutrient availability.

Learners read how to calculate the MOD number and how it is used.

Learners identify negative roles, match statements characteristic of each role, and relate how they have handled negative teams.

In this learning activity you'll explore how computers connected on a network use Ethernet technology.

In this animated object, learners examine what anxiety is, how it affects people, and ways to manage it.

Learners examine the function of each part of a microscope and follow step-by-step instructions on how to focus on a specimen. They also review the proper use and care of a microscope and test their knowledge in two drag-and-drop exercises.

In this learning activity you'll calculate exchange rates to determine the impact of prices of exports and imports.

The learner examines what it means to listen respectively and how to become a better listener.

In this learning activity we’ll learn how the web works by using a Request and Response algorithm.

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