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 interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.

In this learning object you'll explore some frequently asked questions concerning steel rule usage.

In this interaction the student is asked 19 questions related to sawing machines.

In this learning activity you'll review how to read a metric micrometer and use your knowledge to answer 12 questions.

In this interaction the student is presented with 20 questions identifying depth micrometer measurements.

In this interaction the student is presented with 17 questions testing his/her ability to read an inch O.D. micrometer.

In this interaction the student is presented with 10 questions on indirect measuring devices and their uses.

In this interaction the student is presented with 12 questions on vernier caliper parts identification.

In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.

In this interactive object, learners work 12 problems dealing with dc circuit analysis.

In this interactive object, learners solve a series-parallel DC circuit analysis problem. Immediate step-by-step feedback is given.

In this animated and interactive object, learners examine ventilation, external and internal respiration, and gas transport.

In this interactive object, learners review how to read a caliper. They then test their skills with eight practice questions.

In this well-illustrated activity, learners examine the three types of intermolecular forces: dipole-dipole forces, London or Van der Waals forces, and the hydrogen bond. Two interactive questions are included.

In this animated and interactive object, learners identify the valves and chambers of the heart.

In this interactive activity, students read about the colored stripes on a resistor and interpret the placement of those colors to determine the value of four-band resistors.

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 animated object, learners observe the voltage on a capacitor at various time constants when it either charges or discharges. Students then answer questions in the categories of Identify, Compare, and Compute.

In this animated and interactive object, learners calculate the maximum velocity of the work stroke and the return stroke.