This module introduces the concept of biological absorption, storage and distribution of chemicals.
This module provides an intrioduction to acid and base chemistry. The Arrhenius and Bronsted-Lowry concepts of acids and bases are discussed as well as the pH scale and neutralization reactions.
This lesson introduces J. J. Thomson's discovery of the electron and E. Rutherford's planetary model of atomic structure. This is the first in a series covering modern atomic theory.
This module provides information on the content and writing style used in writing a Visionlearning teaching module.
This module provides an introduction to the concept of carbohydrates as a macronutrient. The biochemical structure of simple sugars and complex carbohydrates are compared and contrasted.
This module provides an overview of the biogeochemical carbon cycle. Major sources and sinks of carbon are discussed as well as the impact of human activities on global carbon levels.
This lesson introduces the cell as the basic structural unit of life, and details modern cell theory.
This is the second in a series of modules which detail the research of Charles Darwin and evolutionary theory. This module continues with a discussion of the processes that led to Darwin's formulation of the theory of natural selection.
This module introduces Darwin's Galapagos travels and an introduction to the theory of evolution as a force for biological change and diversification. This is the first in a series of modules which detail the research of Charles Darwin and evolutionary theory.
It discusses the process of equation writing and balancing chemical equations in perspective of the chemical changes that take place during a reaction. This module is the third in a series on chemical reactions.
It introduces the concept of electron exchange and briefly explains exothermic and endothermic reactions. This is the first in a series of modules on chemical reactions.
This lesson discusses the interior structure of the earth as defined by research on the behavior of seismic waves as they move through the layers inside of the planet. The lesson details both compositional layers as well as mechanical layers.
This module explores the composition of the earth's atmosphere, how temperature and pressure vary in the atmosphere, and the scientific developments that led to an understanding of these basic concepts.
An introduction to the forms and changes in energy. This lesson discusses potential and kinetic energy as well as introducing the 1st and 2nd law of thermodynamics.
This module provides an introdcution to the concepts of fats and proteins. The basic chemical structure of fats as triglycerides is reviewed, and an introduction to protein structure, including the peptide bond is given.
This module discusses the hydrologic cycle and its impacts on the planet Earth. Additionally, the module addresses connections between the hydrologic cycle, climate and the impacts humans have had on the cycle.
This lesson describes the history and basic operation of the metric system as well as scientific notation. The simplicity of the metric system stems from the fact that there is only one unit of measurement (or base unit) for each type of quantity measured (length, weight, etc.).
This lesson is an introduction to the history and use of the scientific concept of the mole.