Learners read about the internal and external users of financial information and the kinds of information most often requested.

In this animated lesson, learners read about the disulfide bond, the second strongest chemical bond in the hair. This bond can only be altered by chemicals.

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

Students read an explanation of chemical formulas in this animated activity. A quiz completes the object.

In this interactive object, learners determine the limiting reagent and the excess reagent in chemical reactions. Learners test their knowledge by solving three problems.

The learner will understand the structural organization of the SDS and be able to find pertinent safety information using the SDS.

Learners rank the most efficient ways in which workers retain information and create their own plan for improvement.

In this interactive object, students examine a type of chemical bond known as the "hydrogen bond."

Learners will understand the technical terms used in the context of the SDS to help them interpret its information.

In this animated and interactive object, learners examine kinetic and potential energy as well as the first law of thermodynamics and the flow of energy between a system and its surroundings. Students also answer questions about exothermic and endothermic reactions

2D and 3D views used to help convey information from a drafter or designer to the welder are provided. This activity will focus on a mounting wedge. A short quiz to test your ability to correctly read this information follows.

In this screencast, learners examine the properties of the hydrogen bond and how the bond changes when hair is shampooed or styled.

2D and 3D views used to help convey information from a drafter or designer to the welder are provided. This activity will focus on a slotted block. A short quiz to test your ability to correctly read this information follows.

2D and 3D views used to help convey information from a drafter or designer to the welder are provided. This activity will focus on a three-step block. A short quiz to test your ability to correctly read this information follows.

Learners examine the information on a title block and answer questions about that information in an interactive quiz.

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

Learners use the coefficients in a balanced equation to develop the mole ratios of reactants and products involved in the reaction. Five interactive examples illustrate the method, and students test their knowledge by working four problems.

Learners examine the meaning of theoretical yield, actual yield, and percent yield. They test their knowledge by solving two problems.

2D and 3D views used to help convey information from a drafter or designer to the welder are provided. This activity will focus on a holder. A short quiz to test your ability to correctly read this information follows.

In this animated object, learners examine how changes in pH affect the salt bonds in strands of hair.