math song (place value to the millions)
Mr. R.'s math song about numbers in the millions- have your students try to say the challenges in the millions! See more of Mr. R.'s free math and science re...
This video shows step by step how to assembly the percussion kit and how to hold the mallets/sticks and play some first sounds. (07:30)
Mammoth Cave National Park in Kentucky
With over 365 known miles of cave passageways, Mammoth Cave is the world's longest cave. Besides its spectacular size, Mammoth Cave has an almost surreal beauty. Remarkable stories of human history, 350 million-year-old rocks and its fascinating animals adapted to life in the dark make Mammoth Cave a place you must visit. (01:09)
When Computers Changed the World from the Revolution Exhibition
"When Computers Changed the World" is just one of more than 100 videos in the Computer History Museum's new exhibition: "Revolution: the First 2000 Years of Computing." In the span of a single lifetime, computers have gone from large, incredibly expensive and rare devices to small, low-cost, ubiquitous tools that we can't imagine living without. Yet, few people know the history of how this came to be. Revolution: The First 2000 Years of Computing is a rich, multimedia exhibition that traces the
This site is a wonderful resource for undergraduate researchers and their mentors. Topics covered include research nuts and bolts, funding your science, scientific ethics, lab safety, communicating your science and mentoring issues. The site makes good use of case studies, self-study questions and references on each topic.
Analytical Electrochemistry: Potentiometry
This courseware module is structured for either a lecture presentation or self-study tutorial on analytical potentiometry. The level of presentation spans upper high school to college students. Topics include historical background, theory/principles, instrumentation, pH electrodes, experimental examples, and troubleshooting tips.
Teaching Chemical Equilibrium Concepts Using Field-Lab Experiences
This online article describes an inquiry-based experience designed to integrate concepts in water quality and geology for pre-education science students preparing to become teachers at the primary and secondary level. The field and laboratory exercise could be used to effectively introduce equilibrium chemistry in an introductory or environmental chemistry course, and courses for non-majors.
GC Splitless Injection Animation
This site is one in a series of sites with very good animations related to separations. This animation deals specifically with splitless injection in GC. The animations are short (one to two minutes) and can easily be shown in class as part of a lecture. They are extremely helpful in illustrating key components and concepts of chromatographic systems. Users are encouraged to explore the site and the other brief animations as well. Separate links to other simulations by the same company (TRSL) ar
James Hardy has produced a number of powerpoint type lecture modules for analytical chemistry. This is another very good module that covers the introductory theory of chromatography. Includes chromatography types, plate and kinetic theories. Level of presentation is at the introductory analytical chemistry level. It is a colorful and well planned presentation of the introduction to chromatography that could be used as the basis for lectures on chromatography at the introductory analytical chemis
Atomic Spectroscopy in a Project-Based Lab
An article published in the \"ABCs of Teaching Analytical Science\" series of the journal Analytical and Bioanalytical Chemistry describes a project-based lab in which students investigate the distribution of Pb and As (from pesticides) in a contaminated apple orchard. Students have complete control of the lab, from designing a sampling strategy to using the primary literature to develop procedures for extracting the analytes and for their subsequent analysis by ICP-AES or ICP-MS.
Laboratory Orientation and Testing of Body Fluids and Tissues for Forensic Analysts
This web site is part of the President\'s DNA Initiative and is devoted to an overview of historical and contemporary techniques to characterize body tissues. The first part of the course covers basic laboratory procedures, safety requirements for laboratory personnel and emphasizes quality control and quality assurance in the laboratory. The second section deals with serological techniques for characterizing specimens such as saliva, semen, blood and urine Identification and individual utilizin
Rice virtual lab in statistics
This site is devoted to statistical tests and demonstrations of their use and was created with the support of the National Science Foundation. One section is a complete reference guide - the online statistics textbook, with detailed descriptions of all things statistical. The second, and most fun section, is simulations/demonstrations section where nearly twenty statistical tests are demonstrated with interactive Applets. Each Applet has clear instructions for use with details on the test demons
Winning friends abroad: can Britain’s cultural power maintain its influence in the modern world?
Sir Martin Davidson KCMG, CEO of the British Council, examines the UK’s soft power capacity.
BIM Presentations John Lorrimer
BIM Presentations John Lorrimer
Animated Webpage Explaining STM
This is an animated gif that illustrates how scanning tunneling microscopy (STM) works. As such it is valuable to students and faculty interested in learning about this important surface analysis technique.
Everything You Ever Wanted to Know about Nanoindentation
The Nanoindentation Website, Hosted By Baker's Group At Cornell, provides an introduction with illustrations to nanoindentation, the underlying mechanism, and applications. The Website is well laid out and easy to navigate. A novel feature of this website is an electronic forum that allows registered users of the site to ask questions about the technique. The site is likely to be useful to students studying materials science, nanotechnology, and surface science.
Landmark Instruments of Chemistry
This website effectively uses animated movies combined with text explanations to describe the processes in FT-IR interferometry, TLC, GC and magnetic sector mass spec. It is effective in illustrating processes that are otherwise difficult to visualize. These materials are excellent visualization tools that can be incorporated into lectures readily.
Animations in an Instrumental Methods Chemistry Class?
This website provides an introduction to animations as a tool for teaching instrumental techniques in the instrumental analysis course - why one might wish to use animations, some information on how to go about developing them, and it provides a number of examples of animations for analytical instrumentation. One problem with the site is that some of the animations emphasize instrumentation that is not frequently used today. For example, the section on ICP shows an instrument with the classical
What is a dynamical system? When we talk about systems in the most general sense, we are talking about anything that takes in a certain number of inputs and produces a certain number of outputs based on those inputs.
2.10 The complex exponential function
Number systems and the rules for combining numbers can be daunting. This unit will help you to understand the detail of rational and real numbers, complex numbers and integers. You will also be introduced to modular arithmetic and the concept of a relation between elements of a set.