By Wendy Dusek
In this animated and interactive object, learners examine ventilation, external and internal respiration, and gas transport.
Atomic Structure and Ionic Bonding
By Jill Larson
In this animated object, learners examine the chemistry behind table salt.
By Barbara Liang
In this animated and interactive object, learners examine ABO blood antigens and Rh antigens and their compatibility.
Biomolecules: The Carbohydrates (Video)
By Becky Polk-Pohlman
Viewers watch an introduction to monosaccharides, disaccharides, and polysaccharides. The processes for dehydration synthesis and hydrolysis.
Muscle and Connective Tissue
In this colorful and interactive object, learners examine the structure and function of muscle and connective tissues. A quiz completes the activity.
Mass Versus Weight
By Kim Ristow
In this learning activity you'll explore the difference between mass and weight.
Naming Compounds Containing Polyatomic Ions
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners examine a table of common polyatomic ions. Eight examples are provided for practice.
How to Use a Microscope
Learners examine the function of each part of a microscope and follow step-by-step instructions on how to focus on a specimen. They also review the proper use and care of a microscope and test their knowledge in two drag-and-drop exercises.
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.
Skin and the Integumentary System
Learners examine the structure and function of skin including the production of melanin.
The Three States of Matter
By Dr. Miriam Douglass, Dr. Martin McClinton
In this animated and interactive object, learners examine the properties of liquids, solids, and gases.
Biomolecules: The Proteins (Video)
Explore what proteins are, their structure, and their functions.
Identifying Eukaryotic Animal Cell Organelles
In this animated object, learners are introduced to the structure and function of animal cell organelles.