Explore what DDoS attacks are, the methods used to carry them out, and how to prevent them.

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

In this animated learning object, students read about the backflow of contaminated water and how to prevent it.

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.

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

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

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 play "How to Really Be a Millionaire" to learn the basics of accumulating wealth.

The learner will understand how to properly use a fillet gage to measure weld size.

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

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

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

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

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

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 study the effect that pressure has on boiling temperatures. Once a liquid has reached a full boil, additional heat does not raise the liquid’s temperature; however, pressure can vary the boiling point of a liquid. A brief quiz completes the activity.

In this learning activity you'll explore how port scanning is commonly used by hackers to infiltrate a network and how IT security professionals can detect it.

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

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

In this learning activity you'll apply directions to follow when writing clear "how-to" instructions.