Catalog Search Results
Series
Chemistry essentials volume 040
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
In this video lesson, Paul Andersen explains how the reaction path can be described in an energy profile. Enough energy must be added to reach the activation energy required and stress the bonds. Eventually the bonds break and new bonds are formed. The rate constant is temperature dependent. The Arrhenius equation can be used to calculate the activation energy when the temperature and rate constant are calculated.--Publisher.
Series
Physics essentials volume 059
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how the position of an object over time can be used to calculate the velocity and acceleration of an object. If a net force acts on a object, it will experience an acceleration.--Publisher.
87) Atomic models
Series
Chemistry essentials volume 008
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
In this video lesson, Paul Andersen explains how the atomic model has changed over time. A model is simply a theoretical construct of phenomenon, so when we receive new data, we may have to refine our model. Ionization energy data resulted in the formation of a quantum model that more accurately reflected the atom.--Publisher.
Series
Chemistry essentials volume 012
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
In this video lesson, Paul Andersen explains how atoms are conserved in a chemical reaction. This can be seen in a chemical equation where the subscripts represent the atoms in the molecule and the coefficients represent the molecules. The mass of an anylate can be determined through both gravimetric analysis and a titration.--Publisher.
Series
Physics essentials volume 055
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how gravitational forces differ from the other three fundamental forces (electromagnetic, strong, and weak). Gravitational forces are always attractive and operate at all scales. Even though gravitational forces are relatively small, they dominate at the large scale.--Publisher.
Series
Biology essentials volume 014
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how living organisms exchange matter with the environment. The importance of the surface area to volume ratio is emphasized using a simple mathematical model. The essential components for life (water, carbon, nitrogen and phosphorus) are described. Each of these is are vital to the four major macromolecules. A brief description of the biogeochemical cycles is also included.--Publisher.
93) Solubility
Series
Chemistry essentials volume 070
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how the dissolution of a solute in a solution can be explained as a reversible reaction. Bonds in the solid solute are broken, and the ions are dissolved in a solution. The Ksp (or solubility product constant) can be used to explain the solubility of various salts.--Publisher.
95) Electric charge
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
"In this video Paul Andersen introduces electric charge. Electric charge has been studies by humans and was generalized by scientists such as Benjamin Franklin. The amount of charge in a system is conserved but individual charges can move through a conductor as current."--
Series
Physics essentials volume 024
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how an object with mass placed in a gravitational field experiences a gravitational force. On the Earth, this gravitational force is known as weight. The gravitational force is equal to the product of the mass and the gravitational field strength.--Publisher.
Series
Chemistry essentials volume 001
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
In this video lesson, Paul Andersen explains how elements and molecules are made of atoms. In a pure sample of a pure substance, the average mass remains the same. If more than one atom is found in a molecule, the ration of average masses remains the same. If two elements have the same atoms but differ in arrangement the ratio of average, the masses will vary.--Publisher.
100) Communities
Series
Biology essentials volume 046
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains the major classification terms in ecology and how a community can be measured by species composition and species diversity. The symbiosis of leaf cutter ants is included. The lesson ends with a discussion of population growth.--Publisher.
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