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Radioactive Decay: A Sweet Simulation of a Half-life PiccoloNamek [GFDL or CC-BY-SA-3.0], via Wikimedia Commons Purpose To demonstrate that the rates of decay of unstable nuclei can be measured, that the exact time that a certain nucleus will decay cannot be predicted, and that it takes a very large number of nuclei to find the rate of decay. Context This is the second lesson in a three-lesson series about isotopes, radioactive decay, and the nucleus. The first lesson, Isotopes of Pennies, introduces the idea of isotopes. To do this lesson and understand half-life and rates of radioactive decay, students should understand ratios and the multiplication of fractions, and be somewhat comfortable with probability. In this lesson, students will be asked to simulate radioactive decay by pouring small candies, such as plain M&M's® or Skittles®, from a cup and counting which candies fall with their manufacturer's mark down or up. This lesson can be done in two, 45-minute class periods. Planning Ahead Motivation Development Ask students: Assessment

CK-12 People's Physics Concepts 1. Units and Problem Solving Units identify what a specific number refers to. Keeping track of units can help you avoid mistakes when you work out problems. 2. One dimensional motion describes objects moving in straight lines. 3. This chapter discusses parabolic and projectile motion, acceleration, and velocity. 4. In this chapter, we explore forces and Newton's laws. 5. Forces which cause objects to turn around continuously in a circle are known as centripetal forces. 6. Isaac Newton in a triumph of brilliance declared that there is one law of physics that governs motion and he unified “earthly” bodies and “heavenly” bodies with the The Universal Law of Gravitation. 7. The total amount of motion in the universe is constant. 8. When any two bodies in the universe interact, they can exchange energy, momentum, or both. 9. The third conservation law is conservation of angular momentum. 10. The development of devices to measure time, like the pendulum, led to the analysis of periodic motion.

Pendulum Lesson Plans Reviewed by Teachers Why Select Other Criteria? Sometimes you only have 45 minutes to review participles before Tuesday's assembly, or you need curriculum you know was reviewed after a certain date. Duration: If curriculum authors indicate how long it takes to implement a resource, i.e. a 30-minute vocabulary exercise, a three-day science experiment, or a two-week expository writing project, we note it for you. If not, our teacher reviewers may indicate an estimated amount of time it would take. When you select a duration in this box, you'll see only resources with that stated duration. Resource reviews that do not include a duration will be excluded from the list. Reviewed After: Limit the resources you see to those reviewed since the date you choose by clicking the box and making a selection.

Radioactive Decay: A Sweet Simulation of Half-Life PiccoloNamek [GFDL or CC-BY-SA-3.0], via Wikimedia Commons Introduction In this simulation, you will use small pieces of candy marked on one side. They will be your “nuclei.” 1. 2. 3. 4. Analysis:1. 20 Places to Find Free Books Online | Northern Cheapskate The following is a guest post by Bailey Harris. There are many different sites offer free books online. Within minutes, you could find enough reading material in the form of e-books and audio books to keep you and your family entertained for months, if not years. The following sites provide free books that can be enjoyed online, downloaded to your computer, or transferred to an e-reader or MP3 player. E-books Google Books – Google Books is a great place to find free classic books in the public domain. Read Print – Read Print makes thousands of novels, poems, and stories freely available online. Online Books Page – This University of Pennsylvania website lists over 800,000 books that can be read for free online. Project Gutenberg – Project Gutenberg was the first site to provide free e-books online and is still among the most popular. Bibliomania – Bibliomania offers more than 2,000 free classic books, plays, poems, and short stories. Audio Books Children’s Books

The Circulation Game Purpose of activity: To learn (or review) information about circulation. Basic science concepts covered: distribution of oxygen to cells and carbon dioxide to lungs via red blood cells, production of red blood cells in bone, delivery of sugar and protein to cells via the blood stream, delivery of wastes to the kidneys for disposal out of the body, the heart as the driving force that keeps the blood moving, the "map" of the circulatory system in and out of lungs, heart and body parts. Description: This is a two-team game that can accommodate 2-6 players (possibly 7 or 8). Players spin the heart spinner to find out how many beats the team gets that turn. Each player gets to move either a blood cell or a food or waste token towards its goal--either cells or the lungs or the kidneys. Target age group: ages 8-14 Materials needed: Copies of the pattern pages on white card stock, scissors, X-acto knife, clear packaging tape, colored pencils, white glue, thin cardboard (cereal boxes work)

Online Libraries - 25 Places to Read Free Books Online | Educhoi Think it's impossible to find free books online? Think again. There are tons of online libraries that provide fiction, nonfiction and reference books at no charge. Here is a list of the 25 best places to read free books online. 1. Free Books on the Online Books Page The University of Pennsylvania's Online Books Page is a great place to read free online books. 2. Free Books at Project Gutenberg Project Gutenberg is the original free electronic book producer. 3. Free Books at Questia Questia is best known as a resource for writers and students, but the site also hosts a library featuring more than 5,000 free books that may be read online. 4. Free Classic Books This free online library holds many of the world's most treasured classics. 5. Free Books at FullBooks.com FullBooks.com offers thousands of books that can be read online for free. 6. Free Books in the Internet Public Library The Internet Public Library is a goodplace to access newspapers, magazines and reference works. 7. 8. 9. 10. 11.

Digestive System, Digestion Information, Digestive System Facts, News, Photos The digestive system is the series of tubelike organs that convert our meals into body fuel. In all there's about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending with the anus. Along the way, food is broken down, sorted, and reprocessed before being circulated around the body to nourish and replace cells and supply energy to our muscles. Food on the plate needs to become a mashed-up, gooey liquid for the digestive system to be able to split it up into its constituent parts: proteins, carbohydrates, fats, vitamins, and minerals. Our teeth start the process by chewing and grinding up each mouthful, while the tongue works it into a ball-shaped bolus for swallowing. Moistening saliva fed into the mouth from nearby glands starts the process of chemical digestion using specialized proteins called enzymes. Once we swallow, digestion becomes involuntary. Key Players Other organs that play a key role in digestion include the liver, gallbladder, and pancreas.

Einstein for Everyone Einstein for Everyone Nullarbor Press 2007revisions 2008, 2010, 2011, 2012, 2013 Copyright 2007, 2008, 2010, 2011, 2012, 2013 John D. Norton Published by Nullarbor Press, 500 Fifth Avenue, Pittsburgh, Pennsylvania 15260 with offices in Liberty Ave., Pittsburgh, Pennsylvania, 15222 All Rights Reserved John D. An advanced sequel is planned in this series:Einstein for Almost Everyone 2 4 6 8 9 7 5 3 1 ePrinted in the United States of America no trees were harmed web*bookTM This book is a continuing work in progress. January 1, 2015. Preface For over a decade I have taught an introductory, undergraduate class, "Einstein for Everyone," at the University of Pittsburgh to anyone interested enough to walk through door. With each new offering of the course, I had the chance to find out what content worked and which of my ever so clever pedagogical inventions were failures. At the same time, my lecture notes have evolved. This text owes a lot to many. i i i

Science - Leading Teachers - Teaching & Learning Resources - Using the Particle Theory at KS3 ' Raise the achievement of pupils by enabling them to use the particle model to explain their observations and to make predictions ' - Nicky Atkin, Wolfreton School Below are some teaching and learning resources used in East Riding of Yorkshire schools by science teachers and pupils. Please click the document title to open, and feel free to use, amend or repurpose as you see fit. The icons on the right of the resources panel are indicative of relevance and possible (not compulsory) usage. Resources courtesy of Wolfreton School. Rationale - The Reasoning Behind the Project Year 7 QCA Unit 7F - Simple Chemical Reactions QCA Unit 7G - Solids, Liquids and Gases Materials QCA Unit 7H - Solutions Year 8 QCA Unit 8E - Atoms and Elements QCA Unit 8F - Compounds and Mixtures QCA Unit 8K/L - Light and Sound QCA Unit 9E - Reaction of Metals and Metal Compounds