Identifying Eukaryotic Animal Cell Organelles
By Barbara Liang
In this animated object, learners are introduced to the structure and function of animal cell organelles.
Biomolecules: The Proteins (Video)
By Becky Polk-Pohlman
Explore what proteins are, their structure, and their functions.
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.
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.
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.
Mass Versus Weight
By Kim Ristow
In this learning activity you'll explore the difference between mass and weight.
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.
Biomolecules: The Carbohydrates (Video)
Viewers watch an introduction to monosaccharides, disaccharides, and polysaccharides. The processes for dehydration synthesis and hydrolysis.
In this animated and interactive object, learners examine ABO blood antigens and Rh antigens and their compatibility.
Red Blood Cells
In this animated and interactive object, learners examine the red blood cell's life cycle and function. A brief exercise completes the activity.
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.
pH and Its Basic Principles
By Joan Kornitz
In this animated object, learners view hydrogen and hydroxide ions in a solution. A brief quiz on the basic principles of the term pH completes the activity.
The Plant Kingdom: An Introduction
Learners read about the mutations that occurred in plants for the successful transition from an aquatic to a terrestrial existence. The classification of plants is based on these adaptive structures.
The Appendicular Skeleton
In this animated object, learners examine the bones of the appendicular skeleton.
Balancing Oxidation-Reduction Equations
In this animated activity, learners examine the terms "half-reaction," "oxidizing agent," and "reducing agent" and follow five interactive examples to balance equations for oxidation-reduction reactions. Three problems are provided as a self-check.
Introduction to Safety in the Chemistry Lab
By Bruce Bell
Learners read about lab equipment and basic safety measures. In a quiz, they view photos and determine if the lab technicians pictured are using safe practices.
Biomolecules - The Lipids (Video)
In this animated object, learners examine neutral fats, phospholipids, and cholesterol. The molecular formula and general function for each are shown.
Physiological Events at the Neural Synapse
In this learning activity you'll review information on the neural synapse.
Ions are electrically charged particles obtained from an atom or from a chemically bonded group of atoms by adding or removing electrons. Eight examples illustrate the number of protons, neutrons, and electrons in positive ions (cations) and in negative ions (anions).
Calculation of Atomic Weight from Isotopic Composition
Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.
The Sense of Hearing
In this animated activity, learners examine hearing and balance. Detailed drawings of the outer, middle, and inner ear structures are included.
Introduction to Class 2 Levers
By James Bourassa, John Rosz
In this interactive object, students view an animated depiction of Class 2 levers. A matching quiz completes the activity.