General Biology Fall 2008
This course is a general introduction to cell structure and function, molecular and organism genetics, animal development, form and function.
Interactive Histogram with Error Graph
This resource consists of a Java applet and expository text. The applet allows the user to construct a histogram by clicking on a number line to generate the sample data. The graph of an error function is shown, either mean square error or mean absolute error.
Types of Experiments: Control experiment
There is a type of experiment in which a scientist uses a control variable approach. All conditions in the experiment will be the same except for one variable. When testing water tolerance of barley plants, for example, you could not water one plant, over-water one plant, under-water another plant, and water the last plant with the optimal amount of water and observe the results.
Unknown desert plant
These leaves show many desert adaptations. The leaves are waxy to reduce water loss. They curl to reduce the surface area available to the harsh, dry conditions of the desert.
Wheat grass selection
The wheat grass on the right is not tolerant of high salinity, or high salt conditions. The wheat grass on the left is a hybrid that has a high salt tolerance. It grows well in high salinity environments.
SAT Prep: Test 5, Section 9, Part 4
Students, improve your math SAT score! The instructor uses an electronic chalkboard to model problems. This video is appropriate for high school students. Uses a textbook (the official SAT study guide) commonly found in bookstores, but it is not absolutely necessary as the narrator does all work on the screen. Problems 14-16 starting on page 683.
Introduction to compact operators
The aim of this session is to cover the basic theory of compact linear operators on Banach spaces. This includes definitions and statements of the background and main results, with illustrative examples and some proofs. This material is accessible to anyone who has a basic knowledge of metric space topology, and who knows what a bounded linear operator on a Banach space is. It is most likely to be suitable for postgraduate students or final year undergraduates.
2014 Freeman Lecture: "Capturing Domestic Wastewater's Resource Potentials"
2014 Freeman Lecture: "Capturing Domestic Wastewater's Resource Potentials" Description: Speaker: Perry L. McCarty, Silas H. Palmer Professor, Stanford University. 4/8/2014.
Dissolved Oxygen and Biochemical Oxygen Demand
This EPA website provides general information about dissolved oxygen, including what it is, sampling and equipment considerations, and sampling and analysis protocols. The site also features a chart of dissolved oxygen solubility as a function of temperature.
Histology: Study of Cells, Tissues and Organs
This course presents the microscopic structure of cells, tissues, and organs, with emphasis on the correlation of structure and function. Vignettes of clinical and pathologic significance are also presented.
Migrant construction workers from rural China describe their living conditions in Beijing in this Wide Angle video segment.
In this video from Wide Angle, learn about the conditions that have caused some Zimbabweans to leave their homeland for Botswana.
We all know that it takes energy to provide us with the basics of shelter: heating, cooling, lighting, electricity, sanitation and cooking. To create energy-efficient housing that is practical for people to use every day requires combining many smaller systems that each perform a function well, and ...
Compare Human-made Objects with Natural Objects
In small groups, students will experiment and observe the similarities and differences between human-made objects and nature. The students will compare the function and structure of hollow bones with drinking straws, bird beaks, tool pliers, bat wings and airplane wings. A classroom discussion can be held to discuss similarities and differences that were observed along with follow up assessment activities such as journal writing and Venn diagrams.
Weather and Atmosphere
In this unit, students learn the basics about weather and the atmosphere. They investigate materials engineering as it applies to weather and the choices available to us for clothing to counteract the effects of weather. Students have the opportunity to design and analyze combinations of materials for use in specific weather conditions. In the next lesson, students also are introduced to air masses and weather forecasting instrumentation and how engineers work to improve these instruments for at
Mathematical Modeling Using Real Radioactivity Data
In this lab, you can explore how radioactive radiation changes as a function of distance. This curriculum sets the Radioactivity iLab in the context of mathematics curriculum, asking you to consider: What type of mathematical function governs the intensity of radiation over distance?
Test your knowledge about cell differentiation, cell function and tissue culture.
Circuit Construction Kit (AC+DC)
This new version of the CCK adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time.
Bringing Water to a Lesotho Village
invites students to conduct research and then simulate a Lesotho village water committee that is designing a water supply system to improve living and health conditions.
Kamchatka: Siberia's Forbidden Wilderness
These lessons are designed for earth science and biology students in middle and high school classrooms, though extension suggestions for older and younger students will allow you to adapt each lesson for younger and older audiences. The lessons are designed to complement the Living Edens: Kamchatka program; each lesson will indicate clips from the program that focus on the topic at hand, though the lessons function equally well as stand-alone content.