Bozeman Science (Firm)
1) Temperature
Series
Chemistry essentials volume 046
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
In this video lesson, Paul Andersen explains how the temperature is a measure of the average kinetic energy of particles in an object. The temperature is proportional to the average kinetic energy according to the Kelvin scale. At absolute zero, there is no molecular motion, and it is at 0K. The Maxwell-Boltzman distribution can be used to measure the average kinetic energy of the particles in a specific example.--Publisher.
Series
Biology essentials volume 018
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback loop functions. He also explains what can happen when a feedback look is altered. Diabetes mellitus is caused by an alteration in the blood glucose feedback loop.--Publisher.
Series
Biology essentials volume 003
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes genetic drift as a mechanism for evolutionary change. A population genetics simulator is used to show the importance of large population size in neutralizing random change. The near extinction of the northern elephant is used as an example of the bottleneck effect. The high incidence of total colorblindness due to a typhoon that hit the small island of Pingelap is also included.--Publisher.
Series
Chemistry essentials volume 069
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how buffer solutions maintain pH in a solution. A buffer solution is made up of a weak acid and its conjugate base. As strong acids or bases are added, the pH remains stable. A good buffer solution has a pKa value equivalent to the pH and equal amounts of the weak acid and the conjugate base.--Publisher.
Series
Physics essentials volume 001
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains the differences between a system and an object. Depending on the scale, it often times easiest to view a system as an object if the constituent parts aren't relevant to the question being asked. He also explains how the simplest objects are the fundamental particles of matter.--Publisher.
Series
Physics essentials volume 095
Publisher
Bozeman Science
Pub. Date
[2015]
Language
English
Description
In this video lesson, Paul Andersen explains how the center of mass of an object represents the average position of matter in an object. The center of mass of a system is a combination of all the objects within the system. As long as no external torque is applied to the system, the center of mass will be conserved.--Publisher.
7) Entropy
Series
Chemistry essentials volume 057
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains that entropy is simply the dispersion of matter or energy. He begins with a series of videos that show the natural direction of processes. According to the second law of thermodynamics, the entropy may never decrease in a closed system. In irreversible processes, the entropy will increase over time. The entropy will increase as volume increases, phases change, temperature increases, and as the moles of...
8) Biodiversity
Series
Biology essentials volume 055
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains the importance of biodiversity. He starts by describing how biodiversity can be species, genetic, or ecosystem diversity. He explains the importance of keystone species in an environment and gives two examples: the jaguar and the sea otter. He finishes with a quote from the father of biodiversity, E.O. Wilson.--Publisher.
Series
Physics essentials volume 025
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how gravitational field strength is directly related to the mass of an object and indirectly related to the square of the distance from the center of mass. The equation for gravitational field strength was discovered by Sir Isaac Newton and contains a gravitational constant.--Publisher.
10) Stoichiometry
Series
Chemistry essentials volume 027
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
In this video lesson, Paul Andersen explains how stoichiometry can be used to quantify differences in chemical reactions. The coefficients in a balanced chemical equation express the mole proportions in that reaction. These values can be used to predict the expected values, determine the limiting reactant, predict the molar mass of gases, determine the percent yield, and interpret results from a titration.--Publisher.
Series
Biology essentials volume 005
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes three main characteristics of life that are conserved in all organisms on the planet. The universal genetic code, the central dogma of biology, and shared metabolic pathways give us details of the original universal ancestor. He also explains how eukaryotic cells gained complexity through infolding of the cell membrane and endosymbiosis.--Publisher.
Series
Physics essentials volume 041
Publisher
Bozeman Science
Pub. Date
[2014]
Language
English
Description
In this video lesson, Paul Andersen explains how Newton's Third Law applies to all objects. When an object applies a force to another object (Action), an equal and opposite force (Reaction) is applied to the original object. Several scenarios are described to show these action-reaction pairs. Free-body diagrams are used to describe all of the external forces from these interactions.--Publisher.
Series
Biology essentials volume 013
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen details the processes of photosynthesis and respiration. Autotrophs use the light reactions and the Calvin cycle to convert energy from the Sun into sugars. Autotrophs and heterotrophs use cellular respiration to convert this sugar into ATP. Both chemosynthesis and fermentation are discussed. The evolution of photosynthesis is also discussed.--Publisher.
14) Gene regulation
Series
Biology essentials volume 031
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how genes are regulated in both prokaryotes and eukaryotes. He begins with a description of lac and trp operons and how they are used by bacteria in both positive and negative response. He also explains the importance of transcription factors in eukaryotic gene expression.--Publisher.
Series
Biology essentials volume 023
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes how plants and animals defend themselves against pathogens. He begins by discussing the hypersensitive response in plants as a nonspecific form of immune response. He then discusses both the humoral and cell-mediated immune response in mammals. A brief discussion of the chicken pox, small pox, and HIV is included.--Publisher.
Series
Biology essentials volume 033
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how changes in the genotype of an individual can affect the phenotype. He explains how mutations can be neutral, beneficial, or harmful. He also explains how mistakes in the cell cycle can lead to disorder, sterility, or new species.--Publisher.
Series
Physics essentials volume 094
Publisher
Bozeman Science
Pub. Date
[2015]
Language
English
Description
In this video lesson, Paul Andersen compares and contrasts elastic and inelastic collisions. In all collisions, the linear momentum will be conserved. In an elastic collision, the kinetic energy of the objects will also be maintained. Several examples and demonstrations are included.--Publisher.
Series
Biology essentials volume 040
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how organisms use information to communicate with each other. Signals are used by bees doing the waggle dance to communicate the location of flowers. Territorial markings are used by wolves to establish territory. Complex courtship rituals are used by sage grouse to ensure mating success. Cooperation is used by organisms that flock to ensure their individual survival.--Publisher.
19) Energy transfer
Publisher
Bozeman Science
Pub. Date
[2013]
Language
English
Description
"In this video Paul Andersen explains how energy can be transferred from one system to another. In a closed system the energy can be transferred as either work or heat. Thermal energy transfer is know as energy transfer through heat. During energy transfer the energy of the entire system is conserved."--
20) 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.