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

Learners solve two sample problems for a mechanical reasoning assessment.

Learners apply lever ratios to calculate the mechanical advantage in basic mechanisms.

The purpose of this learning object is to introduce the learner to the different processes of science.

In this interactive object, learners examine the structural-functional, social-conflict, and symbolic interaction analyses of science and technology. A mind map and quiz questions are included.

Learners read an analogy comparing mechanical work (in this case, sliding a weight) to that of electrical power. The relationship of work, apparent work, and power factor is developed.

Learners read an analogy comparing an electrical transformer to mechanical gears.

This animated lesson shows how to calculate the amount of force generated by hydraulic cylinders.

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.

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.

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.

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

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

Learners solve word problems involving basic mechanical principles such as torque, horsepower, work, and power. Students who have problems with a particular word problem may try it again with a different set of numbers.

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.

In this animated object, learners read about the uses of nanotechnology. The sciences, engineering, electronics, and other disciplines converge in nanotechnology. Examples are given for applications in manufacturing, biomedicine, and environmental science. Concerns about possible environmental effects are discussed.