Hi-Res Images of Hydrogen Nonmetal, mass: 1.008 u, 2 stable isotopes (1, 2), abundance rank (earth/space): 9/1 Click image to magnify. Vial of glowing ultrapure hydrogen, H2. Hydrogen is the lightest and simplest element and, with a ratio of 80%, is the main ingredient of the visible universe. 20% consist of helium, the ratio of the heavier elements is below 1%. Right: The Great Orion Nebula, 80% hydrogen. The images are licensed under a Creative Commons Attribution 3.0 Unported License, unless otherwise noted. WebElements Periodic Table of the Elements Il Blog di scuolaidea » Blog Archive » Tiny Tap…imparare giocando Author: Scuolaidea Cos’è Tiny Tap? Un’applicativo gratuito e semplicissimo da utilizzare che dal 2012 è utilizzato da insegnanti, educatori e, naturalmente, bambini e ragazzi per creare degli “spazi” di apprendimento attraverso i quali imparare divertendosi. Per accedere serve pochissimo: una connessione ad internet, uno smartphone o un tablet naturalmente scaricare l’applicazione da PlayStore o Apple store a seconda del sistema operativo e del device. La piattaforma permette di realizzare giochi personalizzati ed è talmente facile da utilizzare che anche un bambino molto piccolo, che già ha avuto in mano un tablet, può utilizzare per creare attività dinamiche a partire da foto personali o immagini reperite in rete aggiungendo poi stickers, sfondi, e come tocco finale, musica. All’ app si puo’ accedere utilizzando le proprie credenziali di Facebook (se si possiede già un account) oppure registrandosi. Da “feed” si accede alle ultime pubblicazione dei makers di Tinytap 1. 2. 3. 2. 3. 4.
Top 10 Picture Books for the Secondary Classroom As a teacher of future English teachers, I am always trying to open my students’ eyes to the wonder and power of the picture book, both as an art form and as a terrific instructional tool for the secondary classroom. Being students of capital-L literature, my teacher-babies sometimes forget to consider these compact and powerful texts. It’s the best way I know to get numerous, diverse and COMPLETE texts into students’ minds. It’s hard enough to squeeze out the time in the overcrowded middle and high school English curriculum to read young adult and classic novels, but with picture books, you can read the entire work aloud, model the focus you want students to concentrate on, let them explore the craft, have the discussion, and even try it out in their own writing–all in one period! So here, in no particular order: my top ten. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Nerdy friends, you are never too old for picture books–I feel like you know that!
Discovery Education Science Fair Central offers ideas for science fair projects and experiments for kids Elmer's Teachers Club The Scientific Method: Experimentation Testing the Greenhouse Effect Judging Purpose and Hypothesis Research Selecting a Topic Artificial Robotic Hand Transmits Feeling To Nerves Astro Teller has an unusual way of starting a new project: He tries to kill it. Teller is the head of X, formerly called Google X, the advanced technology lab of Alphabet. At X’s headquarters not far from the Googleplex in Mountain View, Calif., Teller leads a group of engineers, inventors, and designers devoted to futuristic “moonshot” projects like self-driving cars, delivery drones, and Internet-beaming balloons. To turn their wild ideas into reality, Teller and his team have developed a unique approach. It starts with trying to prove that whatever it is that you’re trying to do can’t be done—in other words, trying to kill your own idea. The ideas that survive get additional rounds of scrutiny, and only a tiny fraction eventually becomes official projects; the proposals that are found to have an Achilles’ heel are discarded, and Xers quickly move on to their next idea. The moonshots that X has pursued since its founding six years ago are a varied bunch.
Metal A metal (from Greek "μέταλλον" – métallon, "mine, quarry, metal"[1][2]) is a solid material (an element, compound, or alloy) that is typically hard, opaque, shiny, and features good electrical and thermal conductivity. Metals are generally malleable—that is, they can be hammered or pressed permanently out of shape without breaking or cracking—as well as fusible (able to be fused or melted) and ductile (able to be drawn out into a thin wire).[3] 91 of the 118 elements in the periodic table are metals. The meaning of "metal" differs for various communities. Structure and bonding hcp and fcc close-packing of spheres The atoms of metallic substances are closely positioned to neighboring atoms in one of two common arrangements. Atoms of metals readily lose their outer shell electrons, resulting in a free flowing cloud of electrons within their otherwise solid arrangement. Properties Chemical 4 Na + O2 → 2 Na2O (sodium oxide) 2 Ca + O2 → 2 CaO (calcium oxide) Physical Electrical Mechanical Alloys
15 Fun Science Activities for Kids We love fun science activities and science experiments. We have a whole list of fun ways to learn and explore today with your little scientist. These fantastic activities were inspired by Buggy and Buddy. 15 Fun Science Experiments for Kids 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Did you know? Our book, The 101 Coolest Simple Science Experiments, features tons of awesome activities just like this one that will keep your kids engaged while they learn. Science Kits These science kits make it simple and easy to start experimenting right away! Tasty Science Kit – Learn why soda pop fizzes and why cakes rise! Gatsby and Show Me App Introducing Markup a paperless grading app Login · Signup 'The Great Gatsby' 7: Gatsby & Daisy meet again by SCC English, The English Department of St... Share Like Topics Literature English The Great Gatsby 83 people liked this ShowMe Posted 2 years ago Viewed after searching for: © 2013 ShowMe.
NSDL.org - National Science Digital Library Penn study shows why sleep is needed to form memories PHILADELPHIA – If you ever argued with your mother when she told you to get some sleep after studying for an exam instead of pulling an all-nighter, you owe her an apology, because it turns out she's right. And now, scientists are beginning to understand why. In research published this week in Neuron, Marcos Frank, PhD, Assistant Professor of Neuroscience, at the University of Pennsylvania School of Medicine, postdoctoral researcher Sara Aton, PhD, and colleagues describe for the first time how cellular changes in the sleeping brain promote the formation of memories. "This is the first real direct insight into how the brain, on a cellular level, changes the strength of its connections during sleep," Frank says. The findings, says Frank, reveal that the brain during sleep is fundamentally different from the brain during wakefulness. "We find that the biochemical changes are simply not happening in the neurons of animals that are awake," Frank says. A molecular explanation is emerging.
Another one of my favorite teaching resources for all things science is The Periodic Table fo Videos, created and maintained by the University of Nottingham. Tables charting the chemical elements have been around since the 19th century - but this modern version has a short video about each one. It really brings the elements to L I F E. We've done all 118 - but our job's not finished. Now we're updating all the videos with new stories, better samples and bigger experiments. Plus they're making films about other areas of chemistry, latest news and occasional adventures away from the lab. They've also started a new series - The Molecular Videos - featuring their favourite molecules and compounds. All these videos are created by video journalist Brady Haran, featuring real working chemists from the University of Nottingham. by drsinasoul May 27
Un petit site avec un vidéo pour chaque élément du tableau périodique expliquant l'élément, très intéressant ! by joeldrapo Mar 12
Thank You.
"Eskerrik asko" by jarbulu Feb 9
Merci. Ca m'encourage à mettre d'autres perles ! by sophie2ze Feb 8
Superbe banque de vidéos portant sur les éléments du tableau périodique by djeepygi Feb 7