Tropospheric Ozone and Smoke from Earth Probe TOMS: Indonesia
Researchers have discovered that smoke and smog move in different ways through the atmosphere. A series of unusual events several years ago created a blanket of pollution over the Indian Ocean. In this animation, significant smog or tropospheric ozone is represented by red and green and regions of significant smoke index are in shades of white and gray.
Elementary GLOBE: Getting to Know Soil
A learning activity for the Scoop on Soils book in the Elementary GLOBE Series. Each student will make predictions about the properties of various soil samples. Then they will examine several types of soils and record their observations. Next, they will learn about soil profiles and horizons by both examining a soil sample in a jar and by creating a soil profile flip chart. The purpose of the activity is to provide the opportunity for students to ask questions and make observations about soil an
Elementary GLOBE: To Spread or Not To Spread
A learning activity for the "Do You Know That Clouds Have Names?" book in the Elementary GLOBE series. Students will explore the difference between the three types of contrails, make observations of contrails outside, and record their observations. Fifteen minutes later they will make follow-up observations to see how the contrails they observed have changed. The purpose of the activity is to help students identify contrails and learn to distinguish between the three types of contrails and to un
Elementary GLOBE: Cloudscape
A learning activity for the "Do You Know That Clouds Have Names?" book in the Elementary GLOBE series. Using information from the book and their observations, students construct a sky scene with trees and buildings as reference points on the ground and cloud types ordered by altitude in the sky. Students will describe clouds using their own vocabulary and will then correlate their descriptions with the standard classifications of cloud types used by the GLOBE Program. The purpose of the activity
Peirce And Fisher on the Place of Probability in Abductive Inference
In his analysis of inference into three types, deduction, induction, and abduction, C. S. Peirce maintains that probability plays an essential role in the first two, but not in the third. For a deductive argument, probability tells us the frequency with which the conclusion will hold given the premises; for an inductive argument, probability tells us the frequency with which the argument will hold true. However, probability has no role to play in abduction because there is, in Peirce's view, no
Risk Management for Enterprises and Individuals
This book is intended for the Risk Management and Insurance course where Risk Management is emphasized. When we think of large risks, we often think in terms of natural hazards such as hurricanes, earthquakes or tornadoes Perhaps man-made disasters come to mind such as the terrorist attacks in the U.S. on September 11, 2001. Typically we have overlooked financial crises, such as the credit crisis of 2008. However, these types of man-made disasters have the potential to devastate the global mark
Mergers and Acquisitions (Part 1)
This course is the first part of a two part course covering the merger and acquisition process. Part 1 describes the overall process, types of mergers, the legal process, important federal regulations, and due diligence. The purpose of the course is to provide the user with a solid understanding of how the merger and acquisition process works. Course Level: Intermediate - Some prior knowledge of business and reporting relationships is useful for a complete understanding of topics covered in this
Financial Planning and Forecasting
This course outlines the process for effective financial planning, including where to start, what types of budgets to prepare, and how to make budgeting a value-added activity. The objective of the course is to provide guidance for the user on how to do financial planning. Course Level: Beginner and Intermediate - The overall concepts are designed for beginners while the specific ideas on how to improve budgeting are applicable to both beginner and intermediate users. Recommended for 2.0 hours o
Earth Exploration Toolbook Chapter: Creating Custom Map Images of Earth and Other Worlds
This chapter familiarizes users with Jules Verne Voyager, a freely available online map tool that includes data for Earth as well as 19 other planets and moons. Users create a variety of map images then save and import the images into a presentation or a word-processing document. In the activity, users explore the range of data that are available to create map images: 100 different types of data are available to characterize portions of Earth. In addition, Voyager has at least one type of data f
The goal of the Genetic Origins Program is to allow students to use their own DNA variations (polymorphisms) as a means to explore our shared genetic heritage and its implications for human health and society. Genetic Origins focuses on two types of DNA variations: an Alu insertion polymorphism on chromosome 16 (PV92) and single nucleotide polymorphisms (SNPs) in the control region of the mitochondrial (mt) chromosome. With two alleles and three genotypes, PV92 is a simple genetic system that il
Herschel Infrared Experiment
Students perform a version of the 1800 experiment in which a form of radiation other than visible light was discovered by the famous astronomer Sir Frederick William Herschel.
World of Crickets
These four activities, use crickets to teach the scientific process to elementary and middle school students. Students will make observations and record data on the types of food that crickets like to eat. In another lab, students determine if crickets respond to light or dark. A “Crickthermometer” activity asks students to design an experiment to find out whether they can predict air temperature by counting the number of times a cricket chirps. In the last activity, “The Musical World of
Object of History
The Object of History is a cooperative project between the Smithsonian’s National Museum of American History and George Mason University’s Center for History and New Media. The project was conceived of in an effort to find a low cost way for students and teacher of U.S. History to have access to the museum’s collections and the expertise of the curators. As a result the materials on the site are designed to improve students’ content knowledge of standard topics in U.S. History and to imp
World History Survey Course on the Web
World History teachers face many challenges to incorporating primary sources in their teaching—the pressures of coverage in survey courses, the lack of available materials, and inadequate training in dealing with unfamiliar sources from a range of cultures. World History Sources responds to these challenges (as well as the new opportunities offered by the Internet) by creating a website to help world history teachers and students locate, analyze, and learn from online primary sources and to fu
Introduction to Stoichiometry
Our on-line Chemistry course covers stoichiometry and demonstrates our scenario based approach to teaching chemistry. Traditional courses tend to follow a bottom-up approach to learning chemistry. This traditional approach teaches abstract concepts and tools before discussing their practical application, which results in students learning bits of unconnected knowledge that are rarely usable let alone memorable. In our approach, scenarios are used both to motivate the material and provide a frame
Whippo Problem Space
What! You haven't ever seen a Whippo? What about a Whammel? Well, how do you think that whales evolved? Which mammals do you think are their closest living relatives? Trying to make sense of whale evolution is a great place to engage in some evolutionary reasoning and look closely at the way scientists work through difficult historical problems. By the way, the term Whippo is used as a sort of shorthand for the hypothesis that whale and hippos represent sister groups—that is, they are each oth
HIV Problem Space
In this problem space, you will have access to the following materials: background information on HIV/AIDS, the original Markham et al. reference and other primary literature, viral sequences from each visit of each patient, patients' CD4 counts at each visit, phylogenetic trees of the virus sequences from each patient, a phylogenetic tree of each patient's starting consensus viral sequence, a published activity using this data from the book Microbes Count!, and additional materials prepared by
In this exercise you will name triangles.
A Lab on Population Genetics and Evolution: A physical Model and Computer Simulation
This laboratory exercise features a physical and computer simulation of Hardy-Weinberg equilibrium.
What Is It Like to Be a Reporter?
Reporters have to meet a lot of deadlines and spend a lot of late nights, but the profession is rewarding, as well. Learn about the different perks of being a reporter with help from a journalism professor. (01:31)