In this learning activity you'll review physiological noise and complete an activity.

In this learning activity you'll review the selection stage in the perception process and apply the information to complete an activity.

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 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.

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

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

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

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

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

In this learning activity you'll observe information and formulate an evaluation that includes diagnosis and microorganism identification.

In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.

In this learning activity you'll explore the difference between mass and weight.

In this animated activity, learners examine what gases are composed of and how their particles interact. They also consider several assumptions that form the basis for the Kinetic Theory of Gases.

In this animated object, learners examine how thermal energy is transferred by conduction, convection, and radiation. A brief quiz completes the activity.

In this animated activity, sexual reproduction in animals is contrasted with the alternation of generation lifecycle of plants.

In this interactive learning activity, learners review the terms used to describe relative position of body parts in order to have a common set of words to describe their position. Check out our video on relative position: https://bit.ly/2kTXujp

In this learning activity you'll analyze the basic steps in conjugation and applies the effect to microbial characteristics.

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 interactive object, learners examine the locations of major body cavities and their protective membranes. A drag-and-drop exercise completes the activity.

In this colorful and interactive object, learners examine the structure and function of muscle and connective tissues. A quiz completes the activity.