Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.

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

Students examine atomic structure and the octet rule.

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 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!