In this video, you'll review how every protein molecule of an organism is synthesized.

In this learning activity you'll review how every protein molecule of an organism is synthesized by that organism in a prescribed process. This activity helps students understand the fundamental life process of making protein.

In this screencast, you will learn about the 24 time zones.

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

Learners complete two exercises. In the first quiz, they divide viruses into two categories: RNA and DNA. They later match each virus with the disease it causes.

In this screencast, learners examine the internal elements of a 555 IC and their operation.

Thousands of health and beauty products claim to be cruelty free - but do you know how to spot a fake? Test your knowledge and explore the exciting science that's delivering cutting-edge and better alternatives to animal testing in this interactive experience. Make decisions as both a beauty blogger and a research scientist as you navigate animal testing in the health and beauty industry.

Learners answer questions about internal combustion engines using a game board format. This learning object can be used individually, in small groups, or as a class activity to provide an alternative self-assessment tool.

This learning object describes the production of an alternating current in a generator with a single-loop armature. An illustration of how a sine wave is produced is shown through animation.

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

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

In this learning activity you'll evaluate your stress journals by responding to questions to identify potential stressors of their future careers and personal lives.

In this animated object, learners examine the operation of various circuits that are internal to the inductive proximity sensor.

Learners examine the operation of various circuits that are internal to the capacitive proximity sensor.

The learner will read a mini-lecture defining external noise and will complete an activity.

In this learning activity you'll discover different communication styles from around the world.

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

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

Learners examine the Karnaugh map for a three-variable system. Several examples are given.