Sticking an adhesive circle to the paper around the blood spot will allow the blood spot to remain untouched if you need to make adjustments. Permanent Marker Chromatography - We used permanent markers and rubbing alcohol to "decorate" our lab aprons or white t-shirts that the students brought to class. These partners include the Houston Forensic Science Center and the Los Angeles PoliceDepartment. by Science of Curiosity 4.8 (42) $3.50 Google Drive folder This blood spatter activity is designed to help your students practice their forensics spatter analysis skills! There are some images of blood stains on this site. 8- Toxicology Ch. - This game challenges a student's ability to remember what they've seen as they examine cards with a variety of patterns on them. Whats more, the properties of the surface that a blood drop strikes may modify how it spreads and therefore affect the stain it leaves. If possible, have a member of your local Chapter 8: Blood and Blood Spatter Flashcards | Quizlet But BPA practitioners have not entirely welcomed these changes, which threaten to upset established field procedures, a reaction also found elsewhere in the forensics establishment. BSPA requires answering a standard set of questions about a bloodstain and determining the relationship of the stain to the surrounding scene. Good prices and service! :$}@/Nyts'sg8rNMOi}V~Kz4:]g(e*v9sl\Q7{ec Z&+E}$[FZDZCbassXa4 `! The scientist may have to perform an autopsy and examine the body to determine if the death was natural or not. ), Presentation:Crime Scene Basics (PPT)Worksheet:Crime Scene Basics Student Notes (PDF), Presentation:Eyewitness Basics (PPT)Worksheets: Eyewitness Basics Student Notes (PDF) In addition, the reference card format will allow special education students (and other students with learning challenges) to focus on the lesson and avoids possible frustration at trying to keep up with the class notes. Bill Bass. Students complete the worksheets as they watch the Rev. I laminated the activity cards and students will use overhead markers to record their data and write the answers to the questions.2 - I also did the optional activity outlined in the unit over the summer to provide real maggot and pupa samples for the students to examine as we disscussed the Forensic Entromology PPT. Long for sharing this video and worksheet that Over 500 video clips were made of blood spatter experiments that are typically performed by individuals attending a basic bloodstain pattern analysis course. Click here to visit the Daily CSI Challenges page Back to top, During this unit students learn basic vocabulary associated with crime scene analysis as well as explore testimonial evidence (eyewitness accounts and FACES facial composites software to create - see the list of supply companies Forensic science includes many areas of study, such as criminalistics, engineering science, as well as pathology and biology. FILES VIDEO WORKSHEETGRADES: 9-12SUBJECTS: , FORENSICS, LAW, HISTORYSUB/EMERGENCY PLANS: YES!DISTANCE LEARNING: YES!MORE, FILES! purchased sets of bones from Each FS/CSI is expected to use their training, experience, and education to . Sidney Perkowitz explains how understanding the physics behind the blood distribution could help uncover the truth. If you have any comments (positive or negative) related to purchases you've made for science projects from recommendations on our site, please let us know. This may at least ensure that future blood evidence will be more effective in identifying the true perpetrators without unjustly condemning people who are innocent. Introductory Presentation:Impression Evidence (PPT)Worksheet:ImpressionEvidence Notes (PDF). They were created for a high school forensics course, but are appropriate any middle or high school class looking for a fun break from the ordinary. Nevertheless, says Carriquiry, for many topics in forensic science we have managed to make important inroads and established some meaningful partnerships with forensic practitioners who see our work as a means to make theirs more objective and scientific . BPA analysts are trained to draw straight-line trajectories that follow the long dimension of each ellipse at that impact angle. had to find out who did it. Blood Basics Card w/ Blood Typing Lab - This two-sided handout replaces the worksheets for the first two presentations and blood typing lab.Bloodstain Science Card with Blood Spatter Lab - This two-sided handout replaces the worksheets for the Bloodstain Science presentation and lab.Blood Basics &BloodstainScience Card (PDF) - This two-sided handout goes with the Blood Basics, BloodTyping, &Blood Spatter presentations. this activity. You will also need The challenges are in the form of PowerPoint presentations and include spot-the-differences puzzles, mini mysteries, trivia challenges, and vocabulary builders. Find a location at your home or at school where you can conduct blood spatter experiments without making too much of a mess. Proficiency Testing Page 25 . Calculate the angle of impact of each stain. In crime scenes where people are wounded, the investigators apply principles of blood spatter analysis. In total there are 35 pages. Do the strings converge at the location where you hit the sponge? NOTE: I use a thermal laminator and pouches to make Experiment with the patterns that the simulated blood makes on different surfaces. look at the various types to help them classify the lip prints and identify the one As of March 2019, the entire episode is available free on You Tube which could make it ideal for computer lab or homework assignments (technology access provided). analyzing bite mark impressions using Pre-made digital activities. students., Forensic Files: List - Includes links to the supply companies and item numbers along with the amounts of each I purchased for my classes. Record the number of teaspoons of simulated blood you used to moisten the sponge in your lab notebook. Sign up today for your listed in the Blood Basics setion on the bloodstain science Flashcards | Quizlet Passive bloodstain a. Hit the sponge sharply with the hammer. A Bloody Mess. Fundamental science has, however, not been well applied to BPA, according to the 2009 NAS report, which was entitled Strengthening Forensic Science in the United States. The links below are provided to give teachers information about the forensic science supplies I use with my classes. High Speed Digital Video Analysis of Bloodstain Pattern Formation from Common Bloodletting Mechanisms. Past Lives episode from Forensic Files DVD. - Point of origin, angle of impact. CSIEffect - A good article to start a discussion on real forensic science vs. TV versions.Science Friday:Finding Fault withForensics - Visit this page for more information on the topic and a podcast to share with your students.Back to top. (PDF) - - I used my microscope camera to capture images of the various hairs and fibers the students observed in class. PDF Forensic Science Lab Activity - Mr. Ciardullo's Class Webpage Forensic Entomology Unit - An excellent resource for junior high and high school students; includes background information, case studies, and a game involving forensic entomology. You should now have about 1 cup of simulated blood. At the end of the unit, they clean them off with a wet cloth and turn them in so they are ready for the next class! solving. The presentation includes His latest books are Frankenstein: How a Monster Became an Icon (2018) and (forthcoming in 2019) Physics: aVery Short Introduction and Real Scientists Dont Wear Ties. Cells that police the body by destroying . I also purchase my simulated blood kits from them. Presentation:Fire Science (PPT)Worksheet:Fire Science (PDF). A 3D view formed using lines of convergence and angles of impact of at least two different drops of blood to identify the source and location of blood spatter. Write to us at, https://www.youtube.com/watch?v=OIwyns0vLAg, DragonflyTV, Twin Cities Public Television, http://www.visualinformation.info/a-bloody-mess-infographic/. Unfortunately, widespread adoption of more rigorous BPA practice and training will not come quickly, or automatically erase past deficiencies that produced unreliable evidence and false accusations. An example of blood back spatter on a card target, produced by researchers at Iowa State University using the set-up shown in figure 4. Calculate the angle of impact of each stain. Blood Spatter Notes: Continued 3. They are less messy than the traditional black powder and fiber brushes. * Files come in 3 formats: Word .docx file, .PDF file, and links to Google Doc versions you can share with your students in Google Classroom.This, pairs with a 43-minute YouTube Video in which, students at Penn State University work together in two separate groups to solve a fictional crime scene. Angle Of Impact Practice Answers I have also created several warm-ups that incorporate CSI-related videos that are available online. This lesson idea was submitted by Sandy Powell, a member of the Middle School Science Yahoo Group. TPT empowers educators to teach at their best. After students complete the My Prints worksheet and classify their prints, they complete the top section of the Fingerprint Analysis worksheet. Worksheets:Fingerprinting Basics Student Notes (PDF), My Prints (PDF), Presentation #2:Science of Ridges (PPT) Sign up today for your Blood Stain Worksheets - K12 Workbook Science Buddies Staff. A witness, who was rated as expert in the forensic technique of blood pattern analysis (BPA), interpreted these spots as placing Bryan near his wife when she was shot a testimony that was at the forefront of Bryans conviction. Eyewitness Online (PDF). Forensics by Kalia and Carolyn. Characterization of Bloodstains Jig-Saw. File Size: 274 kb. Certainly, there is much left to do. The PowerPoint bundle, which covers all units listed below, and the test bundle, are also posted on TPT. I developed this geocaching activity for use with the CSI summer camp program at the Smithsonian in DC. Can be used as a classwork assignment, assessment, or review. Hairs &Fibers Note Worksheet (PDF)- Student worksheet for the presentation. . Your students will watch the video and answer questions while building their understanding of crime sc, This WS goes with the Smithsonian Channel Series Catching Killers. Incorporate 2 drops of green food coloring. Join two investigations and see how the ever-evolving, of bloodstain pattern analysis helped investigators solve both the 1954 murder of the wife of a prominent doctor and t, MORE FORENSIC FILES! Bloodstain pattern analysis. }-MrV1Xgj9Z08}f\?gAzxC"=tk6UH> SJ` aDnzP`!+2!. (One remarkable example of the instability is the spectacular filaments seen in the expanding Crab Nebula, where the two fluids comprise material ejected by the Crabs initial supernova explosion, and a plasma of relativistic charged particles powered by the Crabs central pulsar.) I use this presentation to introduce the topic of impression evidence and then students investigate tire tracks, tool marks, and shoe prints. Update 2016: The video is available at The results for the height where each drop originated had an average value of 58.5 cm, only 8% below the true height of 63.7 cm. Through the help of our local Finally, the team found the number of resulting stains, their areas, impact angles and distribution with respect to distance (figure 2). Diagram of a blood spatter on the ground leaves a distinct tail in the direction it was traveling. As a statistician and director of the Center for Statistics and Applications in Forensic Evidence (CSAFE) which is funded by the US National Institute of Standards and Technology (NIST) Carriquiry has a broad view of forensic science. If a sports player were to die suddenly while playing a game, a forensic scientist with a specialty in pathology and biology would be called in to find out the cause. Bones Magazine - A great human body as well as investigate the role from their pets/livestock.My collection includes In real life, crime scene investigators are just as interested in making sure that justice prevails, and they are very meticulous. This is called the. You appear on the scene and you see the blood spatters, but don't know the origin. Graphic Organizer (PDF)- Thanks to Luann Snider for submitting this worksheet that can be used with any of the Forensic Files episodes. But according to a startling, people. cup (the criminal that destroyed her room). See the list of supply companies at the bottom of this page. Materials:Teacher Information (PDF)CSIAdventure Presentation (PPT)Cache Cards (PDF)Clue Cards (PDF)Group Answer Sheet (PDF)Answer Key (PDF). Calculate the angle of impact for each spot using Equation 1, below. We also analyze the distribution of patterns for males vs. females and discuss the results after students have completed the bottom section of the worksheet. Fluids 1 043201) and blunt-nosed (Phys. (You could also have students record their answers in a lab notebook rather than write on the pages.) for sharing this worksheet for use with the This was a fun tradition in which we evaluated how our current topic was portrayed in the popular series, AnalysisThese episodes are available on most streaming services as well as at your local library. teachers at her school on paper and then put Nor is it likely that the legal standards for acceptance of BPA evidence will change soon enough to affect Joe Bryans upcoming appeal for a new trial. the Amazon or the History Channel. It can also large butcher paper.Bone My Supply She, went around the See the list of supply companies at the bottom of this page. Lynn Peavey - My source for fingerprint brushes and other fingerprinting equipment. 2 pages of chronological questions that following seamlessly along with the episode. An arrow extends from each stain indicating the exact position of each stain. bite marks. Students complete the worksheets as they watch the From the composition of blood and blood types to bloodstain pattern analysis, students investigate how blood evidence can be used in a crime investigation. For example, they often leave footprints, hair samples, and evidence as to what kind of weapon they used to commit the crime. PDF BLOODSTAIN PATTERN ANALYSIS - IN.gov ** All files come in both editable Word .docx format and .pdf format. 5 0 obj The angle is determined using the trigonometric function, arcsin or sin. them in sheet protectors. My Toe Prints worksheet (PDF) - Students are always interested in examining their toe prints to see how they compare to their fingerprints. A forensic engineer applies engineering principles to the purposes of law investigations. do not work. Fingerprint Analysis (PPT) - Iuse this activity with my students to analyze the distribution of fingerprint patterns in each class. Forensics: Blood and Blood Spatter Review Worksheet You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. Hold the string taut and bring it all the way to the ground. When you aren't looking, have a volunteer hit the moistened sponge with the hammer, at a different location on the paper, and then remove the sponge. cat, dog, ferret, rabbit, cow, pig, horse, and deer be found. Reference Cards: They must then answer a series of questions through inquiry, observation, measurement, and analysis. *Please watch the video in advance of your students to gauge appropriateness. Thanks to Dina Sbarra for sharing her lip View Download 2174k: v. 2 : Mar 17, 2015, 10:35 AM: Jessica Merrill: : BLOOD AND BLOOD ANALYSIS UNIT 6_PART 2.ppt . All rights reserved. By taking measurements and observations of blood spatter, the investigators and forensic scientists can determine how the victim was hurt, what objects were used, and where in the area the wound was inflicted. The challenge is made more difficult because blood is a complex fluid containing both liquid (the plasma) and solid (the blood cells) components. PDF Terms and Definitions in Bloodstain Pattern Analysis DRAFT - NIST Establishing the scientific validity of BPA could therefore have an international impact on dealing with the worlds 250,000 annual gun-related deaths by helping to categorize them as homicides or suicides and, in the former case, potentially bringing the perpetrators tojustice. Besides temperature, the viscosity of blood also depends on the percentage of red blood cells, which varies by individual and could affect approaches like that used by Laan and colleagues. Tool Marks Challenge (PDF) - This activity challenges students to match tool impressions from a set of 12 tools. 23 Ratings. In another effort, Attingers team has published back-spatter patterns of human blood produced in the lab by gunshot (figure 3), with rigorous control of the firearms and ammunition used and the physical arrangement (Data in Brief 22 269); and a second set of blood patterns produced by blunt instruments (Data in Brief 18 648). Blood Spatter Teaching Resources | TPT - TeachersPayTeachers Follow all instructions to complete the activity. By taking measurements and observations of blood spatter, the investigators and forensic scientists can determine how the victim was hurt, what objects were used, and where in the area the wound was inflicted. The website forms part of the Physics World portfolio, a collection of online, digital and print information services for the global scientific community. Technical Review Worksheet Page 15 2. MFRC Bloodstain Pattern Analysis Video Collection - Ames Lab
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