Learners follow steps to establish the lower and upper limits in a spreadsheet.

In this screencast, learners examine the function and location of the motor neurons and the damage that can result when they are injured.

In this interactive object, learners answer 25 questions regarding part or assembly drawings. The basic areas of blueprint reading are covered.

Learners examine the use of the tolerances displayed in a title block by calculating the minimum and maximum allowable size of a fabricated part. In a brief quiz, students determine whether a part is usable or should be scrapped.

This project gives a drawing with steps to complete the activity.

In this animated activity, learners examine how an adjustable pressure-reducing valve can produce a pressure that is lower at its output than at its input.

In this well-illustrated object, learners examine basic floral anatomy. The flower is the reproductive organ of the angiosperm.

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 follow steps for sizing a car wash interceptor according to the Wisconsin Administrative Plumbing Code. A quiz completes the activity. (Hover your mouse in lower right corner to see the next button)

In this animated object, learners view molecules as they collide and move between two different solutions. They also observe what happens when the temperature of the solutions is raised or lowered.