In this animated learning object, students examine the life cycles of a virus.

In this learning activity, you'll explore the basics of prototyping for user experience design.

In this screencast, students read about the basic organization and structure of the periodic table of elements. Students identify elements as belonging to a group, a period, or neither.

In this learning activity you'll explore the food pyramid and the recommended services.

Students practice identifying common elements from the periodic table by name or symbol.

Learners read about lab equipment and basic safety measures. In a quiz, they view photos and determine if the lab technicians pictured are using safe practices.

In this module, you'll be able to :

- Identify five routes of infection

- Describe how diseases are transmitted in animals

By the end of this module, you’ll be able to:

- List four categories of disease agent sources

- Discover conditions when disease transmission is likely to occur

- Describe the means of disease transmission in a given situation

By the end of this module, you'll be able to:

- Identify actions that can reduce biosecurity risk

- Develop a biosecurity action plan for a farm

- Select the most cost effective strategies

In this screencast, learners examine the kinds of physical and chemical changes that occur in substances.

In this screencast we are introduced to the lab equipment used to contain and dispense chemicals.

In this screencast, we review the positions of metals, metalloids, and nonmetals in the Periodic Table and the general characteristics of each.

In this animated activity, learners explore three major methods of heat transfer and practice identifying each.