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Everyday Mysteries: Fun Science Facts from the Library of Congre

Everyday Mysteries: Fun Science Facts from the Library of Congre
Did you ever wonder why a camel has a hump? If you can really tell the weather by listening to the chirp of a cricket? Or why our joints make popping sounds? These questions deal with everyday phenomena that we often take for granted, but each can be explained scientifically. Everyday Mysteries will help you get the answers to these and many other of life's most interesting questions through scientific inquiry. In addition, we will introduce you to the Library of Congress' rich collections in science and technology. All of the questions presented on this Web site were asked by researchers and answered by librarians from the Library's Science Reference Services.

http://www.loc.gov/rr/scitech/mysteries/

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Rubrics for Web Lessons Introduction How often have you attempted to grade your students' work only to find that the assessment criteria were vague and the performance behavior was overly subjective? Would you be able to justify the assessment or grade if you had to defend it? The Haber process - Daniel D. Dulek Haber received much criticism for his involvement in the development of chemical weapons in pre-World War II Germany, both from contemporaries and from modern-day scientists. The research results show the ambivalence of his scientific activity: on the one hand, development of ammonia synthesis for the manufacture of explosives and of a technical process for the industrial manufacture and use of poison gas in warfare; but on the other hand, development of an industrial process without which the food supply for today's world population would be greatly diminished. For more information, read Between Genius and Genocide: The Tragedy of Fritz Haber, Father of Chemical Warfare by Daniel Charles. Like Einstein, Haber was Jewish and German; unlike Einstein, he converted to Christianity and was a German patriot. When the war turned into a stalemate, with both sides stuck in trenches, Haber tried to break the deadlock with chemistry. His idea: to use poison gas to destroy enemy trenches.

Why Ask Why in the Classroom “Somewhere, something incredible is waiting to be known.” -Carl Sagan As an educator I always understood how important asking questions, especially why question was in the classroom. I believe asking questions empowers students to learn and encourages growth. In my classroom, it was an expectation as the students knew I was going to ask why. NetVet Veterinary Resources / Electronic Zoo Animal Species Text and Non-Netscape Browsers, [Start Here] Select a Species from the Pick List, the Image Map above, or the Menu below. Return to: iPads + Water Rockets = Fun Science & Math Lesson This morning I stopped by my friend Mike Morrell’s 9th grade science class. It was water rocket launch day so I knew it would be a fun day. Mike’s students have been working on rocket designs and building their rockets for a while. The water rockets are the first phase of the unit. Full model rockets with engines will be launched later this spring. To get rough measurements of the heights each water rocket reached Mike had students using a clinometer iPad app.

Under the hood: The chemistry of cars - Cynthia Chubbuck Based on the graph above, maximum protection from freezing the liquid in the cooling system occurs with a mixture of 66% ethylene glycol and 34% water. Based on the graph above, the minimum percentage of ethylene glycol that must be used in a radiator to prevent the fluid from freezing at –25°C is 40%. There are two substances that are commonly used as the solute in a car radiator. Ethylene glycol (EG) is the traditional choice, but propylene glycol (PG) is gaining a foothold in the market. In comparing solutions using the two substances, an EG solution is more effective at lowering the freezing point and is better at transferring the heat away from the engine. 4 Strategies to Spark Curiosity British archaeologist Mary Leakey described her own learning as being "compelled by curiosity." Curiosity is the name we give to the state of having unanswered questions. And unanswered questions, by their nature, help us maintain a learning mindset. When we realize that we do not know all there is to know about something in which we are interested, we thirst.

Unit 2: Genetics - 7th Grade Life Science - (Private Browsing) Monday: Learning about other ways that traits are inherited besides the simple dominant-recessive pattern. Inheritance patterns is attached below. Students will also be finishing their punnett square sheets from before break and trying out some punnett squares using their new knowledge of other inheritance patterns on the back of the notes. Tuesday: We did a Human Karyotype to diagnose a child for a genetic disorder! See all the files attached below to complete at home if needed (you only need one third of the Karyotype extra chromosomes sheet. 40 Of The Best Science Podcasts For Mobile Learning In 2013, you don’t need to find a radio to listen in on quality broadcast programming. A laptop, MP3 player, tablet, or even a smartphone will work just as well. Even better, there is a wealth of content out there that’s both educational and entertaining, including some pretty amazing shows on scientific topics that are equally interesting to the layman and the professional. Whether you’re just getting into listening to science podcasts or are looking for a few new shows to add to your weekly collection, we’ve highlighted what we think are some of the best science podcasts out there right now. They’re informative, compelling, and even, at times, pretty darn funny, so make sure to check out one, two, or even all of these great science programs the next time you’re looking for a little edutainment. Radiolab:Listeners can enjoy five episodes a season of this hip, science-focused news show.

What Causes the Colour of Gemstones? Click to enlarge There are a wide range of gemstones used in jewellery, with each having its own characteristic colour – or, in some cases, a range of colours. The origin of these colours has a chemical basis, and the precise colour can vary depending on the chemical composition of the gemstone. When are Students Engaged? (Updated 11/2013) Educational author and former teacher, Dr. Michael Schmoker shares in his book, Results Now, a study that found of 1,500 classrooms visited, 85 percent of them had engaged less than 50 percent of the students. In other words, only 15 percent of the classrooms had more than half of the class at least paying attention to the lesson. Unit 3: Genetics - Mrs. Callister's 7th grade Science Class Website - (Private Browsing) Assignments Toothpick Fish Lab -If absent October 24th, you can complete the lab at home using a cup and strips of paper with the words "green," "red," and "yellow" written on them instead of using a petri dish and colored toothpicks. Quick Unit Summary

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