Microbial Flora in Body Sites
By Dawn Madl
In an interactive exercise, learners identify the human body sites that harbor a normal resident flora and the sites that are sterile.
Naming Binary Ionic Compounds Containing Variable Oxidation State Cations
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Roman numerals are used to identify the charges on metal cations having multiple oxidation states. Five examples are provided for practice.
Helpful Microbes in Your Daily Life
By Elizabeth Yoon
Learners read how microbes in such items as yogurt, bread, insulin, and insect sprays improve our lives.
The Cell: Passive Transport Diffusion (Video)
Explore what passive transport diffusion is and how it moves water through a membrane.
By Debbie McClinton, Dr. Martin McClinton
Students read an explanation of chemical formulas in this animated activity. A quiz completes the object.
Learning the Elements of the Periodic Table by Name or Symbol
By Mona Wenrich
Students practice identifying common elements from the periodic table by name or symbol.
How the Brain Develops
By Mary Beth Boettcher
In this interactive learning object, learners study the parts of the brain and then test their knowledge in a drag-and-drop exercise.
The Juxtaglomerular Apparatus
By Becky Polk-Pohlman
In this animated and interactive object, learners examine the location, structure, and function of the juxtaglomerular (JG) apparatus.
Solubility of Ionic Compounds in Water
By Dr. Miriam Douglass, Dr. Martin McClinton
Learners view movie clips to determine the solubility of two ionic compounds. They also examine a solubility chart and predict the solubility of compounds.
Newton's Third Law of Motion - Video
By Kim Ristow
In this learning activity you'll examine Newton's Third Law: for every action, there is an equal but opposite reaction.
The Food Pyramid
By Michele Williams
In this learning activity you'll explore the food pyramid and the recommended services.
Physiological Events at the Neural Synapse
By Barbara Liang
In this learning activity you'll review information on the neural synapse.
Lifecycles of Animals and Plants
In this animated activity, sexual reproduction in animals is contrasted with the alternation of generation lifecycle of plants.
The Fungi Kingdom: Common Characteristics of Fungi
Learners examine what defines a fungus and read how fungi differ from animals and plants.
Classification of Joints
In this animated object, learners examine the different types of joints and their movements.
Regional Body Parts
By Gerald Heins
In this interactive object, learners identify a person's regional body parts.
Calculating Formula Weight and Molecular Weight
In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.
The Four Types of Chemical Reactions
In this animated object, learners examine synthesis, decomposition, exchange, and reversible reactions.
The Formation of Ester Bonds in the Synthesis of Lipids
By Richard Wilkosz
In this animated object, learners examine the formation of ester bonds in the synthesis of lipids using triglyceride biosynthesis as an example. Ester bond formation is described as a dehydration synthesis reaction.
By Jill Larson
In this animated object, students examine what happens when electrons share molecules.
In this interactive lesson, students examine the quantitative relationship between chemicals in a balanced mathematical equation.
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.
The Stress Response
In this animated object, learners read a brief description of the roles of the hypothalamus, emotions, and adrenal secretions during the stress response.
In this well-illustrated object, learners examine basic floral anatomy. The flower is the reproductive organ of the angiosperm.
In this animated activity, learners examine the two major phases of cell division: mitosis and cytokinesis.