Atomic weights are used to convert the mass of a sample into the number of moles of the element in the sample and vice versa. Four examples are provided for practice.

In this animated object, students examine the role equilibrium plays in everyday life. Formulas are presented in an interactive way.

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

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

In this learning activity you'll review how every protein molecule of an organism is synthesized by that organism in a prescribed process. This activity helps students understand the fundamental life process of making protein.

The student identifies the anatomical parts of the ear and learns the purpose and function of these parts. A review follows the lesson.

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

In this animated activity, learners examine the two major phases of cell division: mitosis and cytokinesis.

In this learning activity you'll examine force, mass, and acceleration to understand this "Law of Acceleration."

Test your knowledge on the ISTE Standards for Students, and what it means to be a global collaborator!