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Lesson on Calculating the Post-Mortem Interval | MSI Forensics Courtesy of Patti Bertino’s email post. The postmortem interval (PMI), also known as a time since death estimate, aids forensic scientists in death investigations. This lesson will introduce your students to the processes of decay and decomposition, forensic pathology, and forensic entomology. The lesson includes several video lectures, animations, and worksheet exercises with practical applications to explain the concept of PMI and accumulated degree hours (ADH). Intended Grade level11-12; content is intended for mature audiences Before you begin …Before starting, students should have a basic working knowledge of forensic science, death investigations, and Algebra. Class time requiredTwo 90-minute class periods Materials and Technology NeededComputer with Internet access and YouTube access enabled, basic calculator Link to website lesson:

Printables from A to Z from Homeschool Creations - Homeschool Creations The printables shared on this site are FREE of charge and you are welcome to download them for your personal and/or classroom use only. However, free or purchased printables are NOT to be reproduced, hosted, sold, or stored on any other website or electronic retrieval system {such as Scribd or Google docs}. My printables are copyright protected and I appreciate your help in keeping them that way. :) If you download and use some of my printables and then blog about them, please provide a link back to my blog and let me know ~ I’d love to see how you are using them! - National Science Digital Library 23 Formative Digital Resources Welcome to a series that is must read for any PBL or STEM educator. It will include information to reflect and build upon as you consider both PBL and STEM. Best of all, it will finish with over 50 amazing resources you will want to investigate. First, to ensure you do not miss one of these valuable posts or other resources covering PBL, Digital Curriculum, Web 2.0, STEM, 21st century learning, and technology integration please sign up for 21centuryedtech by email or RSS. As always, I invite you to follow me on twitter (@mjgormans). Quick Note I have been getting a lot of requests asking if I will make a visit to your school, organization, or conference. The STEM and PBL Series Part 4… 23 Formative Digital Resources ….A STEM, PBL, Common Core Series… A Goldmine of Resources Project Based Learning is built on lessons/activities rich in formative learning experiences along with student interaction and production. Resources Next Post… 14 PBL Sites That Just Might Have Some STEM Ideas….

Edheads - Activate Your Mind! Lle Chatelier principle This law is known to every Chemistry student as the Le Châtelier principle . His original formulation was somewhat complicated, but a reasonably useful paraphrase of it reads as follows: Le Châtelier principle: If a system at equilibrium is subjected to a change of pressure, temperature, or the number of moles of a component, there will be a tendency for a net reaction in the direction that reduces the effect of this change. To see how this works (and you must do so, as this is of such fundamental importance that you simply cannot do any meaningful chemistry without a thorough working understanding of this principle), look again at the hydrogen iodide dissociation reaction Consider an arbitrary mixture of these three components at equilibrium, and assume that we inject more hydrogen gas into the container. The following tabLe Contains several examples showing how changing the quantity of a reaction component can shift an established equilibrium. 2 NO2(g) → N2O4(g) More on marine sediments

Your Weight on Other Worlds Ever wonder what you might weigh on Mars or The Moon? Here's your chance to find out. <div class="js-required"><hr> This Page requires a Javascript capable browser <hr></div> Fill in your weight below in the space indicated. Mass and Weight Before we get into the subject of gravity and how it acts, it's important to understand the difference between weight and mass. We often use the terms "mass" and "weight" interchangeably in our daily speech, but to an astronomer or a physicist they are completely different things. Weight is an entirely different thing. If you are in a spaceship far between the stars and you put a scale underneath you, the scale would read zero. The Relationship Between Gravity and Mass and Distance As stated above, your weight is a measure of the pull of gravity between you and the body you are standing on. The two "M's" on top are your mass and the planet's mass. All things by immortal power near or far to each other hiddenly linked are. Isaac Newton

science « Nonfiction Comics The explanation of how DNA works can be as complicated as the organisms it helps put together. And yet, because this knowledge is essential to understanding the entire field of biology, we expect students to learn all about this alphabet soup, from ATGC to XX and XY. In The Stuff of Life: A Graphic Guide to Genetics and DNA, writer Mark Schultz and artists Zander and Kevin Cannon attempt to construct a comprehensive primer that not only explains each component and how each process works, but to make sure they come together into a complete picture, better to ensure a true understanding of the subjects rather than a disconnected series of facts. They do this by wrapping it up in a science fiction framework, taking us to the the distant planet of Glargal. At 142 pages (plus a glossary) The Stuff of Life may not seem long, but it’s one of the densest graphic books I’ve ever read.

Systems Thinking Games Systems Thinking Games, developed in partnership with Filament Games, are designed to be used by youth and educators to assess systems thinking skills both in the classroom and in afterschool contexts. A precursor to the GlassLab, this project brings together teachers, assessment experts and game designers and developers to collaboratively design and build a suite of games with data tools that support teachers in evaluating the way players approach problem-solving, and the strategies players use in understanding and interacting with complex systems. Currently, research is underway to develop assessment frameworks that yield valid and reliable assessment measures across the suite of digital games. To learn more, please join the Institute’s community for updates on our progress.

The Eerie Glow of the Antarctic Aurora Illuminates the Continent, Seen from Space The Sun may seem steady and calm to the eye, but in reality it’s anything but. Magnetic fields pierce the surface, barely constraining the dozens of millions of tons of ionized plasma that flow along them. These loops of magnetic force store vast amounts of energy, and if released, can explode with the force of millions of nuclear bombs. Screaming across the solar system, most of that material misses the Earth, such a small target we are. Image credit: NASA/NOAA/DoD/Jesse Allen & Robert Simmon That lovely picture is from the Suomi NPP Earth-observing satellite. The picture shows the aurora australis, the glow of the air over Antarctica, in this case over Queen Maud Land, due south of Africa, on Jul. 15, 2012. The Moon was a crescent at the time this picture was taken, so really the only ambient light is from the aurora itself. Suomi NPP is a powerful tool; in the hi-res version of this image you can easily see cracks in the ice and separate floes.

ippex online - main - Playforce: Learning from the games we play Chemicals - Manual - Lesson 5 At a Glance Overview Students apply their growing understanding of the concepts of toxicology (dose, response, individual susceptibility, potency, and threshold) to their discussion of the 1950s tragedy in Minamata, Japan. They learn how to assess the risk of people to specific chemical hazards and make decisions about how to manage that risk. Major Concepts People can make some choices about chemical exposure; however, some exposure is controlled at a level other than an individual one. Objectives After completing this lesson, students will Background Information The Minamata Case Study When people living in Minamata, Japan, in the 1950s began slurring their speech occasionally or dropping their chopsticks at a meal, no one thought much of it. We now know the tragic story of Minamata. The consequences of such blatant polluting seem obvious to people today. Risk Assessment How a person is exposed to a chemical also determines the factor of risk. Managing Risk Notes about Lesson 5 In Advance 1. 2.

Science Starters Science A to Z A, B, C, D, E, F, G, H, I, J-K, L, M, N, O, P, Q, R, S, T, U-W, X-Z Other Scrambles: Year of Science (This is the first starter I do each year.) Name the Ologist Set 1, Set 2, Set 3, Set 4, Set 5 Science Trivia Set 1, Set 2, Set 3, Set 4, Set 5, Set 6, Set 7, Set 8, Set 9, Set 10, Set 11 NOTE: These starters were submitted by Sharon Stone. Science Equipment Set 1, Set 2 Microscopes1 (Parts), Microscopes 2 (Parts), Microscopes 3 (Questions), Microscopes 4 (Questions), Microscopes 5 (Questions), Microscopes 6 (Powers), Pond Water Organisms Science Safety Safety Picture 1, Safety Picture 2, Safety Scramble Science Experiments Experiment Scramble, Experiment 1, Experiment 2 Measurement Density 1, Density 2, Density 3, Density 4, Volume NOTE: These starters were submitted by Rebecca Bryant. Graduated Cylinder, Mass NOTE: These starters were submitted by Sharon Stone. Do you have starters that you'd like to share?