How are Earth's spheres interacting?
This Earth science investigation leads students through a brief introduction of the spheres of the Earth and an exploration of the interactions among the spheres. The seven-step investigation incorporates a mixture of informational text, questions, and images. After reading about and interacting with an image of the four main spheres (the atmosphere, hydrosphere, geosphere, and biosphere), students are introduced to the concept of sphere interactions as part of the larger Earth system. Text, que
Author(s): TERC. Center for Earth and Space Science Education

Minerals
This site provides an in-depth look at mineral properties and identification. An alphabetical listing of common minerals allows the user to see a picture and view physical properties of the particular mineral. Properties of minerals are explained, including cleavage, hardness, crystal form, and luster. There are also downloadable labs for crystal models and mineral data sheets. Dichotomous and hardness keys are given for easier mineral identification.
Author(s): Creator not set

Fossil Fuels
How much does the United States depend on fossil fuels? This web page, part of a site on the future of energy, introduces students to fossil fuels as an energy source. Here students read about the uses, benefits, and limitations of fossil fuels. There is also information on how these fuels are distributed geographically and how they affect the U.S. economy through supply and demand. Thought-provoking questions afford students opportunities to reflect on what they've read. Articles about clean co
Author(s): Iowa Public Television. Explore More Project

The beginnings of probability
These pages present, in terms of a fictional story based on true events, the problem that inspired the development of mathematical probability in Renaissance Europe by French mathematicians Pierre de Fermat and Blaise Pascal. Two equally skilled players are interrupted while playing a game of chance for a certain amount of money. Given the score of the game at that point, how should the stakes be divided? Outlined here is, first, the particular solution and then the general solution based on a c
Author(s): The Math Forum

This site presents seven lessons that allow students in grades K-3 to investigate the concepts of understanding and reading maps. The lessons utilize a story about a little girl named Nikki who visits an imaginary amusement park. A teacher guide for each lesson includes objectives, teaching suggestions, activities, and student worksheets.
Author(s): The Learning Web,U.S. Geological Survey (USGS)

Hey folks, in an earlier C9 team post we explained how we are moving event content from various places (MIX, PDC, TechEd, etc...) into Channel 9 to give you a single repository of as much technical content as we can bring together. Well, phase 2 of that move has occured and 464 PDC sessions from across PDC08, Author(s): Duncan Mackenzie

Stand Up Speak Out-Acceptance
This Public Service Announcement was created by a group of Canadians to teach acceptance. The children and teenagers in this video share that we all should be accepted regardless of our looks or religion. The theme is to "Stand Up and Speak Out". It is a brief but good reminder that our differences make us special. Content is appropriate for upper elementary and middle school students. (1:02)
Author(s): No creator set

Body Circulation
Students are introduced to the circulatory system, the heart, and blood flow in the human body. Through guided pre-reading, during-reading and post-reading activities, students learn about the circulatory systemâ€™s parts, functions and disorders, as well as engineering medical solutions. By cultivating literacy practices as presented in this lesson, students can improve their scientific and technological literacy.
Author(s): Integrated Teaching and Learning Program,

Students use simple materials to design an open spectrograph so they can calculate the angle light is bent when it passes through a holographic diffraction grating. A holographic diffraction grating acts like a prism, showing the visual components of light. After finding the desired angles, students use what they have learned to design their own spectrograph enclosure.
Author(s): Laboratory for Atmospheric and Space Physics (LASP

How it's Made -Â Lithium Ion Batteries
Batteries are examples of stored energy, chemical potential energy to be exact.  But how are batteries made and what is inside? This is a segment from the Discovery Channel series "How it's Made" on lithium ion batteries.(05:36)
Author(s): No creator set

An outcome is the result or consequence of a process. For example, you may want to produce an accurate analysis of some survey data, and to do this you may need to improve and apply your statistical skills. In this case the result of your analysis is an outcome, and using your number skills is part of the process by which you achieve that outcome.

Try to express the outcomes you hope to achieve as clearly and accurately as possible, asking others for help and comments if necessary. To h
Author(s): No creator set

ISS Update - April 1, 2011
The International Space Station video update for April 1, 2011.
Author(s): No creator set

Introduction to X-ray Diffraction (XRD)
This learning module presents the fundamentals of X-ray Diffraction for characterizing molecular structure in a form useful both as lecture notes and for self-study.
Author(s): Heather Bullen

Introduction to Scanning Probe Microscopy
This learning module teaches the principles behind scanning tunneling microscopy and atomic force microscopy. The module includes example applications and ample literature citations.
Author(s): Heather Bullen

Basic Electronic Tutorials On AC, DC, Semiconductor, and Digital Theory
This website serves as an excellent tutorial on basic AC and DC electronics, semiconductor operation and digital theory. Experiments are included to illustrate these concepts. The material is sufficiently comprehensive and is highly recommended as a starting point for students interested in learning about basic electronics.
Author(s): OpAmp Electronics

Introduction to Signals and Noise: eLearning Module
Basic concepts of signals, noise, and extraction of data from noisy signals are presented as an e-learning module. Excel spreadsheets allow students to vary noise parameters. Basic electronics ideas relating to RC circuits support introductory information on filters
Author(s): Steve Petrovic

HPLC Tutorial 2,0 Video
This high quality video resource focuses on partition chromatography. The video presents an overview of basic separation theory and discusses instrumentation and data analysis. The size of the video (62.6 MB) almost requires a high speed internet connection. The resource can be downloaded to the user\'s computer, which is recommended for those with slower connections.
Author(s): Frank Dunnivant, Whitman College, Education Solns

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
Author(s): David Lane

Compilation of FTIR Materials
Provides excellent tutorials on the principles of IR absorption, interpretation of spectra for structure determination, a spectral peak wizard, an authoritative glossary of spectroscopic terms, and links tutorials on how FT instruments work.
Author(s): Michael C. Martin