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

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

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

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.

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

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

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.

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

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

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

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