The learner reads directions for finding the slope, intercept, and correlation coefficient for a group of ordered pairs using one of eight different scientific calculators.

In this video you'll study the structure of the cell membrane and construct it using the correct molecules.

In this animated object, learners examine the formation of peptide bonds through dehydration synthesis.

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

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

In this interactive and animated object, learners use solubility rules to predict when an insoluble ionic compound will precipitate in a double replacement reaction. Step-by-step examples are given.

Students identify the various regions of the human body through video.

Learners examine how melting, vaporization, and sublimation require energy input while freezing and condensation release energy.

In this animated object, the learner examines 17 types of joint movement.

In this interactive object, students view an animated depiction of Class 1 levers. A matching quiz completes the activity.

In this animated object, learners examine the mechanisms for gas exchange among the lungs, blood, and tissues.

In this interactive object, students view an animated depiction of Class 3 levers. A matching quiz completes the activity.

Chytrids, as members of this group are known, are found everywhere. In this animated learning object, students examine the role of chytrids and their impact on the environment.

Students read different definitions of "acids" and "bases." In an interactive exercise, they identify if a substance is an acid or a base.

In this animated object, students examine what happens when electrons share molecules.

Explore what passive transport osmosis is and how it moves water through a semipermeable membrane.

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

Learners examine the function and wiring of the sympathetic nervous system.

In this interactive learning object, learners study the parts of the brain and then test their knowledge in a drag-and-drop exercise.

In this animated object, learners trace the olfactory pathway from the nasal cavity to the olfactory cortex.

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

Vapor pressure is the pressure exerted by molecules in the gas phase in equilibrium with a liquid or a solid. Two examples are used to illustrate vapor pressure: the drying of clothes and the evaporation of ice.

In this screencast, you'll observe two vehicles moving across the screen at different rates then describe the motion. Additionally, you'll select the corresponding graphs of distance vs. time, velocity vs. time, and acceleration vs. time for each vehicle.

In this animated object, learners examine synthesis, decomposition, exchange, and reversible reactions.