By Barbara Liang
In this animated activity, learners examine the two major phases of cell division: mitosis and cytokinesis.
The Sense of Hearing (Screencast)
In this screencast, learners examine hearing and balance. Detailed drawings of the outer, middle, and inner ear structures are included.
The Cell: Passive Transport Diffusion
In this animated object, learners view molecules as they collide and move between two different solutions. They also observe what happens when the temperature of the solutions is raised or lowered.
Muscle Cell Contraction
In this animated activity, learners examine muscle cell contraction and relaxation and consider the role of calcium ions.
Heat Transfer: Conduction, Convection, Radiation
By Laurie Jarvis, Deb Simonson
In this animated activity, learners explore three major methods of heat transfer and practice identifying each.
The Sense of Taste
In this interactive object, learners examine the structure and function of the sense of taste.
In this animated and interactive object, learners examine ABO blood antigens and Rh antigens and their compatibility.
The Anatomy of the Heart (Video)
By Becky Polk-Pohlman
In this video learners view the valves and chambers of the heart.