untitled Quick Details ProName: Panthenyl ethyl etherCasNo: 667-83-4LimitNum: 0 Superiority D-Panthenyl Ethyl Ether Popular Name: Provitamin B5 ; D-Panthenyl alcohol ; D-Panthenol ; Dexpanthenol INCI Name: Panthenyl Ethyl Ether/Ethyl… Details D-Panthenyl Ethyl Ether Popular Name: Provitamin B5 ; D-Panthenyl alcohol ; D-Panthenol ; Dexpanthenol INCI Name: Panthenyl Ethyl Ether/Ethyl Panthenol Molecular Formula: C11H13NO4 Molecular Weight: 233.31 CAS NO.: 667-83-4 Structural Formula: Appearance and Character: D-Panthenyl Ethyl Ether is a yellowish or colorless, clear, slightly viscous liquid. Periodic Table of the Elements by WebElements ChemCollective Radon Home Page | Indoor Air | US Environmental Protection Agency Radon Standards of Practice Learn how the radon standards benefit your work, proposals, call for bids, etc. Listen to or read this webinar for the latest information on radon industry standards of practice available through American Association of Radon Scientists and Technologists (AARST) .Gary Hodgden, Chair of the Executive Stakeholder Committee for the AARST Consortium on National Radon Standards, Melinda Ronca-Battista, Health Physicist currently at Northern Arizona University in the Institute for Tribal Environmental Programs, and Jani Palmer, Scientist at EPA, Office of Air present this webinar. Radon Leaders Saving Lives Leaders from The Conference of Radiation Control Program Directors, Inc. Driving Radon Action and Awareness at the Federal Level Mr. Managing Radon in Schools (PDF, 3 pp, 391K) As part of an effective IAQ management program, schools should test for radon to know if radon levels are elevated — and if so, reduce risks to occupants through radon mitigation.
50 Really Cool Online Tools for Science Teachers A 21st-century education revolves around the Internet for everything from collaboration, tools, lessons, and even earning degrees online. If you are looking for ways to integrate online learning into your science class or science degree programs, then take a look at these cool online tools that are just perfect for both teachers and students. Science Tools to Use with Students These tools offer opportunities for learning about climate, cells, the human body, nature, and more. ChemiCool. AP Tools Whether you are setting up a new AP curriculum or are just looking for additional material to use with your AP science students, these tools will help. Advanced Placement Biology. Websites and Resources for Science Teachers These websites are chock full of amazing resources and tools for science teachers. Discovery Education. Calculators Use these informative environmental calculators with your students. Ecological Footprint Quiz. Online Games Online Science Games. Google Earth Google Earth Ocean.
A Citizen's Guide to Radon | Radon | US Environmental Protection Agency The Guide to Protecting Yourself and Your Family From Radon U.S. EPA/OAR/IED (6609J) EPA 402-K-12-002, May 2012 [Please note, the Spanish version of the Citizen's Guide has not been updated. EPA Recommends Test your home for radon — it's easy and inexpensive.Fix your home if your radon level is 4 picocuries per liter, or pCi/L, or higher.Radon levels less than 4 pCi/L still pose a risk, and in many cases may be reduced. Radon is estimated to cause thousands of lung cancer deaths in the U.S. each year. * Radon is estimated to cause about 21,000 lung cancer deaths per year, according to EPA's 2003 Assessment of Risks from Radon in Homes (EPA 402-R-03-003). Top of page Overview Radon is a cancer-causing, radioactive gas. You can't see radon. Radon is estimated to cause many thousands of deaths each year. Radon can be found all over the U.S. Radon comes from the natural (radioactive) breakdown of uranium in soil, rock and water and gets into the air you breathe. You should test for radon. Step 1.
Periodic Table of Elements and Chemistry FAQ Will dryer sheets or eating special herbs and spices, garlic, vitamin B-1, or bananas ward off biting insects? There is a long list of “repellent” urban legends, including these. NONE of these approaches work reliably. If you want to be protected from insect and tick bites, use a DEET-based repellent. Back to Top Do herbal oils, skin lotions, “natural” plant extracts mixed in oil, and homeopathic approaches repel biting insects? Most of these work for about 20 minutes and are no more effective than smearing cooking oil on your skin. In the prestigious New England Journal of Medicine, Richard J. Does DEET cause seizures in children? This recurring rumor is without scientific foundation. I have read something about DEET causing neurological symptoms in laboratory animals in studies at a well-known university. The researcher conducting studies used DEET mixed with known neurotoxins, so a neurological finding is not unusual or unexpected in this instance. Can DEET be used with sunscreen? No.
High School Science Vocabulary Many high school students struggle with the depth and breadth of high school science courses. One way to relieve these stresses and learn to understand even the most intricate science concepts is by mastering the science vocabulary that expresses them. A basic understanding of each word’s definition will give students confidence to use these words and inquire about their linkages and applications. Students who study and review the science terminology and vocabulary used in high school science lessons are better equipped to achieve understanding of the concepts. The seven categories are available through “Summary Lists” in the following categories: Biology, Ecology, Integrated Science, Chemistry, Physics, Space Science, and Earth Science. The comprehensive lists are designed to complement a common high school science curriculum. Using alternate means of study, such as high school science word games, can make a big difference. Return to Science Vocabulary Overview. High School Ecology
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11 cheap gifts guaranteed to impress science geeks Science comes up with a lot of awesome stuff, and you don't need a Ph.D, a secret lab, or government funding to get your hands on some of the coolest discoveries. We've got a list of 11 mostly affordable gifts that are guaranteed to blow your mind, whether or not you're a science geek. Click on any image to see it enlarged. 1. Aerogel Also known as frozen smoke, Aerogel is the world's lowest density solid, clocking in at 96% air. Aerogel isn't just neat, it's useful. Price: $35 2. Inside these sealed glass balls live shrimp, algae, and bacteria, all swimming around in filtered seawater. EcoSpheres came out of research looking at ways to develop self-contained ecosystems for long duration space travel. Price: $80 3. NASA has been trying to figure out how to get a sample of rock back from Mars for a while now. Every once in a while, a meteorite smashes into Mars hard enough to eject some rocks out into orbit around the sun. Price: $70+ 4. Price: $150 5. Price: $110 6. Price: $80 7. Price: $15 8.