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"The solar cells that power solar aircraft are called photovoltaic (PV) cells. PV cells are made of materials that absorb light energy. The PV cells in most solar planes are made of silicon. Silicon is both lightweight and efficient, so it is the best choice for solar planes where the challenge is to create an aircraft light enough to fly but with enough power to get off the ground."

"The ChemWiki project is a collaborative approach toward chemistry education where an Open Access textbook environment is constantly being written and re-written partly by students and partly by faculty members resulting in a free Chemistry textbook to supplement conventional paper-based books. Success of the project will be gauged by the number of students who consult the ChemWiki and the number of Chemistry courses that eventually adopt the ChemWiki as the sole textbook for class needs."

"Geographic distribution of acid rain Acidity in rain is measured by collecting samples of rain and measuring its pH. To find the distribution of rain acidity, weather conditions are monitored and rain samples are collected at sites all over the country. The areas of greatest acidity (lowest pH values) are located in the Northeastern United States."

Students will be able to describe the motion of the particles in solids, liquids, and gases. - The particles of a gas move quickly and are able to spread apart from one another. - The particles of a liquid are able to move past each other. - The particles of a solid are not able to move out of their positions relative to one another, but do have small vibrational movements."

"Two Americans shared this year's Nobel Prize in Chemistry for deciphering the communication system that the human body uses to sense the outside world and send messages to cells - for example, speeding the heart when danger approaches. The understanding is aiding the development of new drugs. The winners, Dr. Robert J. Lefkowitz, 69, a professor at Duke University Medical Center in Durham, N.C., and a Howard Hughes Medical Institute researcher, and Dr. Brian K. Kobilka, 57, a professor at the Stanford University School of Medicine in California, "

"We look at the gas laws and how to recognize which one to use in three sample problems."

"spectrometers into people's hands -- lots of them. For as little as $35, you can now get your own kit and start scanning different materials in your backyard, neighborhood, or household. With one of our latest prototypes -- a spectrometer that attaches to your smartphone (see above) -- we hope to make spectrometry available to anyone,"

"As we approach the Mars rover Curiosity's landing Sunday night, we're having a lot of fun seeing all the promotions - there are all kinds of videos, museum exhibits and road shows to help explain what the newest interplanetary explorer will do. Below is a great new one from the American Chemical Society. Curiosity is a well-equipped geologist, traveling to Mars with a suite of tools to bake and pulverize rock, but it's also a trained chemist, capable of detecting the ingredients necessary for life as we know it. It's the first explorer to be able to do this. "

"Lab Out Loud is a podcast and blog that discusses science news and science education with leading scientists, researchers, science writers and other important figures in the field."

Researchers have found a way to make multiple high-performance anodes from a single silicon wafer. The process uses simple silicon to replace graphite as an element in rechargeable lithium-ion batteries, laying the groundwork for longer-lasting, more powerful batteries for such applications as commercial electronics and electric vehicles.

Very challenging

ChemiCroc is a Professor of Chemistry and wants to help children learn more about the chemicals that surround them in their everyday life. As well as being a helpful Croc he can sometimes get into a lot of trouble, and in the ChemiCroc games you must help him get out of trouble by helping him use his knowledge of Chemistry.

Presentation (100) Video (58) Handout (292) Worksheet (90) Quiz (4) Experiment (331) Game (8) Tutorial (118)"

"Molecules is an application for viewing three-dimensional renderings of molecules and manipulating them using your fingers. You can rotate the molecules by moving your finger across the display, zoom in or out by using two-finger pinch gestures, or pan the molecule by moving two fingers across the screen at once."

"This is a standard periodic table of the elements - a necessity for anyone interested in or even exposed chemistry. However, the version differs in that instead of cramming all the information for an element into one little square, you can select a chemical attribute and have the entire chart color coded to plainly show how the different elements vary "

"Chemistry Course Overview and Models - some broken links but most ok

"Elements 114 and 116 have been officially added to the periodic table, becoming its heaviest members yet. They both exist for less than a second before decaying into lighter atoms, but they bring researchers a step closer to making even heavier elements that are predicted to be stable for decades or longer, forming a fabled "island of stability" in the periodic table."

"element 118 (ununoctium, Uuo) was produced. Not too much though, one atom in the spring of 2002 and two more in 2005."