!These forensics activities will take 1-5 class periods, depending on how you use them. If you need help locating a video file of the episode please simply let me know and I will pull up a, Bloodstain Patterns: Behind the Yellow Line Video Reflection. Blood and Blood Spatter. Power of Evidence Challenge (PDF) - Challenge your students to this word search/scramble using terms discussed in the Power of Evidence presentation. your students. I collected a variety of maggots (species and sizes) as well as pupa and preserved them in glass vials with 50% isopropyl alcohol. In crime scenes where people are wounded, the investigators apply principles of blood spatter analysis. http://www.hulu.com/watch/147911Flame TestFlame Test Video at YouTubeFire Safety Checklist from http://www.sparky.org/family.html, During this unit students investigate Newton's Laws of Motion to analyze an accident scene to determine the sequence of events that lead up to the accident, explain damage resulting from the accident, and "solve" cases. The blood drop has an outline similar to a ping-pong paddle where the handle will point in the direction of travel. Each individual unit plan includes the TEKS, student objectives, key vocabulary, and a list of activities. Terms and Definitions Accompanying Drop A small blood drop produced as a by-product of drop formation. There are a variety of question types, including a vocabulary section with a word bank, short answer questions, long answer questions, Punnett Square questions and, analysis.BUT WAIT. this lesson is part of a complet. cup (the criminal that destroyed her room). 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. The interpretation of forensic evidence is not always based on scientific studies to determine its validity, it stated. Thanks to Dina Sbarra for sharing her lip products in my TPT store!Topics covered:Ch. Science Buddies participates in affiliate programs with I printed several sets of this worksheet on card stock and laminated them to keep them for future classes. (PDF) - Christmas Cookie Mystery- Use this lesson listed on the Chemistry Lessons page to investigate white powders. Type. Technical Review Worksheet Page 15 2. Each episode is 20-22 minutes in length. Add . 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. - Students use their investigative skills to match fingerprint samples. Game rules and pattern cards are provided in the download. which is geared towards the high school level, but Passive bloodstain a. INDIANA STATE POLICE . 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. purchased the CRASHkit and I share it with the high If you need help understanding trigonometry, examine the the source listed below. She had one Bloodstain Science Card with Blood Spatter Lab - This two-sided handout replaces the worksheets for the Bloodstain Science . the Amazon or the History Channel. It can also The Science Spot was developed in March 1999 by. . A digital scale that would be suitable (the Fast Weigh MS-500-BLK Digital Pocket Scale) is available from, Container with lid, should hold about 2 cups of liquid, Graduated cylinder, 250 mL; available from, Clothes and shoes to wear that might get stained, Goggles; available at your local hardware store, Adhesive circles; generally used to reinforce punch holes in paper and are available at office supply stores. - Use this lesson listed on the Chemistry Lessons page to investigate white powders. Presentation:Fire Science (PPT)Worksheet:Fire Science (PDF). Bloodstain Pattern Analysis Terms Spatter -Bloodstains created from the application of force to the area where the blood originated. Long for sharing this video and worksheet that Calculate the angle of impact of each stain. bloodstain pattern analysis: The assessment of the diameter and shape of bloodstains, which reflect the origin and trajectory of external blood flow, in the context of homicide or violent death. Introductory Presentation:Impression Evidence (PPT)Worksheet:ImpressionEvidence Notes (PDF). - For any other use, please contact Science Buddies. Find a location at your home or at school where you can conduct blood spatter experiments without making too much of a mess. Reproduction of material from this website without written permission is strictly prohibited. Copyright 2002-2023 Science Buddies. After discussing the information on the reference card, students create DNAkeychains, which are used for an identification activity in which students have to match their keychains with a paper model. Finally, the team found the number of resulting stains, their areas, impact angles and distribution with respect to distance (figure 2). Tourist Trap It does not include the lab sheets - you will need to print those out separately.Questions about the reference cards?See the note at the top of this page. Some of the notes are followed by short activities for students to complete with a partner.Comes in both PDF and editable Word (.docx) Files.Topics include:1- Intro to Forensics2- The Crime Scene3- Hair as Evidence4- Fiber Evidence5- Fingerprints6-, Spatter7- DNA Fingerprinting8- Toxicology9- Handwrit, Rated 4.83 out of 5, based on 142 reviews, patterns tell CSIs about a crime? For a refresher, check out the trigonometry reference listed in the Bibliography. But mechanical engineers and fluid dynamicists Alexander Yarin and Patrick Comiskey from the University of Illinois at Chicago, together with Daniel Attinger at Iowa State, have gone further. Review:Unit 1 Review Worksheet (PDF) and Unit 1 Review Key (PPT). Forensic science includes many areas of study, such as criminalistics, engineering science, as well as pathology and biology. Are you getting the free resources, updates, and special offers we send out every week in our teacher newsletter? Earlier work had derived an equation relating the impact velocity of a liquid drop of blood to its volume and impact angle, and to the width of the dried stain it produced as determined by the known capillary and viscous behaviour of blood. After students complete the My Prints worksheet and classify their prints, they complete the top section of the Fingerprint Analysis worksheet. However, Bryan is nearly 80. Attinger has also published charts based on fluid dynamics that make it simple for investigators in the field to estimate the maximum distance that a blood drop has travelled (Forensic Science International 298 97). " answer key) are available for the Patterns produced are often characteristic of the nature of the forces which created them. Bone Basics (PPT), Student Worksheet: NOTE:I highly recommend the magnetic fingerprint wands and dust if you have the money available to purchase them. Christina Beatty for sharing her booklet that she uses with her students to help them understand blood typing.. Rev. Spatter -- That blood which has been dispersed as a result of force applied to a source of blood. Zone Archive The scientist may have to perform an autopsy and examine the body to determine if the death was natural or not. Course BIG BUNDLE! View Download 2174k: v. 2 : Mar 17, 2015, 10:35 AM: Jessica Merrill: : BLOOD AND BLOOD ANALYSIS UNIT 6_PART 2.ppt . In real life, crime scene investigators are just as interested in making sure that justice prevails, and they are very meticulous. Materials:Teacher Information (PDF)CSIAdventure Presentation (PPT)Cache Cards (PDF)Clue Cards (PDF)Group Answer Sheet (PDF)Answer Key (PDF). 22 Followers. For example, Attinger and co-authors have written a tutorial paper in which they discuss the forces at play in fluid dynamics and how they determine the behaviour of blood drops at a crime scene (Forensic Science International 231 375). History Channel's FBI Crime Scene DVD., FBI Crime Lab video worksheet BSPA requires answering a standard set of questions about a bloodstain and determining the relationship of the stain to the surrounding scene. 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. I use this presentation to introduce the topic of impression evidence and then students investigate tire tracks, tool marks, and shoe prints. What is the difference between a crime scene investigator and a forensic scientist? - *Video is necessary for completion of this, . Explore this subject collection, bringing together world-leading research from journals, books and conference proceedings. Unit 5-Blood And Blood Spatter - Mrs. Slovacek's Science. listed in the Blood Basics setion on the She had one ** All files come in both editable Word .docx format and .pdf format. Fingerprint Analysis (PPT) - Iuse this activity with my students to analyze the distribution of fingerprint patterns in each class. - Students are always interested in examining their toe prints to see how they compare to their fingerprints. teachers at her school on paper and then put It became prominent in the US during the famous Sam Sheppard murder trial in 1955, and has played an important role in other murder trials since including those of football player and actor OJSimpson (19941995, verdict of not guilty) and music producer Phil Spector (20072009, retrial verdict of guilty). Record all data in your lab notebook. Good prices and service! playing with fires can cause major damage and went around the Blood pattern analysis (BPA), i.e., the study of shape, size, and nature of bloodstain. Mark Evidence (PDF) - This activity learn to identify the main bones in the Cafe Press - My favorite site for CSI t-shirts! Science Buddies, a 501(c)(3) public charity, and keep our resources free for everyone. Lab #8 Distance Falling v. Surface Texture (Optional) 6. allows students to practice making and Confirm Equation 1. Hair &Fiber IDLab Worksheet (PDF)-Students use microscopes to draw pictures of 6 hair and 6 fiber samples.NOTE:I created slide sets of 9 animal hairs and 6 fibers for students to use for this activity. Doc P Chemistry. 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. fire department, students explore the basics of fire 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. Quiz:Blood Basics Quiz (PDF)Other Resources for Blood Evidence: Blood Typing Booklet HERE. List - Includes links to the supply companies and item numbers along with the amounts of each I purchased for my classes. Proceeds from the affiliate programs help support other information and two activities., Introductory I challenge the students to use their notes and observation pages to identify each one. with the anthropology unit as it involves Reference Card: Power of Evidence:Physical Evidence Card (PDF) - This two-sided handout replaces the worksheet listed above. At the end of the lesson, I have students complete the Hair &Fiber Challenge to test their ability to identify various samples. 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. Transfer bloodstain c. A bloodstain caused by force 4. Criminals unintentionally leave behind many clues about themselves at crime scenes. Rated 5 out of 5, based on 23 reviews. % Presentation:Chromatography (PPT)Worksheet:Chromatography Notes (PDF). Diagram of a blood spatter on the ground leaves a distinct tail in the direction it was traveling. Worksheets:Fingerprinting Basics Student Notes (PDF), My Prints (PDF), Presentation #2:Science of Ridges (PPT) (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.) look at the various types to help them Ward's - A large selection of resources for a forensic science class, including the Forensic Detectives Lab I use in my classes. Teacher information, a student worksheet, and a sample page of my challenge are provided in the download. Measure the distance from each stain to the AOC. 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. QuestionsforReading_BloodStain and Blood Spatter Evidence.pdf View Download . The experimental set-up used by Daniel Attinger and colleagues in Iowa to study back-spatter blood stains. For example, drops of blood that strike the floor at an angle will create a set of elliptical stains, whose width-to-length ratio gives the impact angle (figure1). I've even found a number of them on YouTube. Record all observations in your lab notebook. I developed this geocaching activity for use with the CSI summer camp program at the Smithsonian in DC. Worksheet:Physical Evidence Student Notes (PDF). What does the pattern look like? Ihave also had good luck with their Perfect Ink fingerprint ink pads listed on the "Genuine Forensic &Crime Scene Materials" page. activity. NOTE: As with any lab Each FS/CSI is expected to use their training, experience, and education to . Although the researchers note that more experiments are needed, their results are significant steps toward a real, physics-based theory of spattering. Forensic Files : Bundle Set #13 (10 Science Video Sheets / Distance Learning), Forensic Files : Bundle Set #4 (10 science / psychology video worksheets), Forensic Files : Bundle Set #17 (10 Video Worksheets / Medical Detectives), Forensic Files : Bundle Set #7 (10 Video Worksheets and More). I start each class period with a warm-up activity targeting forensic science concepts and other skills (observation, problem-solving, etc.) 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. 7- DNA Fingerprinting Ch. 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. The theoretical results so far show the value of the fluid dynamics approach but also that its complexity can add uncertainties to the analysis, for example through the variable properties of blood and blood stains. They collect evidence, come up with a list of possible perpetrators, and apply different methods to extract information from all of the evidence. Quiz:Power of Evidence Quiz (PDF)Other Physical &Trace Evidence Resources: Trace Evidence Online (PDF)- Reused by permission of Elsevier)"(Courtesy: Data in Brief 22 269. A bachelor's degree in biology . Activities, Laboratory. following episodes: *Deadly Valentine (Season 10, Episode 16)Episode Summary: An obstetrician returned home from the hospital and. Challenge - I prepared several sets This slideshow and worksheet were created for a high school forensic science, but is suitable for any class studying blood stains or blood spatter. Bloodstain Practice 5. Physics World represents a key part of IOP Publishing's mission to communicate world-class research and innovation to the widest possible audience. The activity challenges students to match tire tracks of 8-10 small toy cars. 3- Hair as Evidence Ch. What if it were traveling nearly parallel to the wall? These provide high-resolution images of blood stains generated under varied conditions, for training and research use (figure 4). Students will read the statement, determine if it is true or false, and if false, make it correct it. Whats more, the properties of the surface that a blood drop strikes may modify how it spreads and therefore affect the stain it leaves. This lesson idea was submitted by Sandy Powell, a member of the Middle School Science Yahoo Group. Proficiency Testing Page 25 . This unit includes an "up close" look at hairs and fibers using microscopes and an assortment of prepared slides. The author would like to thank Mr. Geoff Bruton of the Ventura County Sheriff's Department Forensic Sciences Laboratory for helpful discussion and for editing this project. The links below are provided to give teachers information about the forensic science supplies I use with my classes. Now, with support from CSAFE and other US federal agencies, researchers are working specifically to strengthen connections between the BPA and fluid dynamics communities, and to provide practitioners with useful results. Have all your supplies with you, including your lab notebook. In the video, Kalia and Carolyn apply forensics to a birthday party crime scene. students., Forensic Files: Three ' Messy ' Blood Spatter Experiment (Optional) 8. How far did the drops travel? Lecture Notes Bundle - A Year's Worth of Lecture Material! Less paper wasted and less time copying - a double bonus! information about bones, joints, and much Fluids 1 043201) and blunt-nosed (Phys. You appear on the scene and you see the blood spatters, but don't know the origin. I purchased ink pads, black powder, brushes, and other materials to make several kits to allow students to work in small groups. Crime Case Studies a. I have also created several warm-ups that incorporate CSI-related videos that are available online. They use the letters that remain in the puzzle to figure out a mystery word. Presentation#1:Blood Basics (PPT)Worksheet:Blood Basics Student Notes (PDF), Presentation #2:"Ernie's Exit"Blood Typing Lab (PPT)Worksheet:Blood Typing (PDF) (Includes teacher notes), Need a cheaper version of the Blood Typing Lab?The version listed below uses milk, vinegar, and water instead of the regular simulated blood kits available from the science supply companies.Presentation:"Ernie's Exit"Blood Typing Lab - "Cheap"Version (PPT)Worksheet:Blood Typing Basics - "Cheap"Version (PDF) (Includes teacher notes), Presentation #3:Bloodstain Science (PPT)Worksheet:Bloodstain Science Student Notes &Lab (PDF) &Angle Guide (PDF) (Needed for Part 4 of lab)EDPuzzle: Blood Evidence 2018 (PDF) see if your high school can receive the program for Still, properly used, BPA can give valuable clues towards understanding the circumstances of a shooting. school and got lip marks from several Use a piece of kitchen string to determine the position of the sponge. free subscription to the investigates the science of arson investigation. The location should be an interior corner so that you can capture the entire spatter. 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. 12/11/18. This should result in a spatter pattern on the paper. But this work is more than just an academic exercise. - This game challenges a student's ability to remember what they've seen as they examine cards with a variety of patterns on them. Hold the string along the protractor at the angle that you calculated for that spatter mark. Place the edge of the moistened sponge at the "X.". Unit Review:Fire BasicsReview (PDF) and Fire Basics Review Answer Key (PPT) - Thanks to Christopher Hunter for sharing these materials.Unit Assessment:Fire Basics Quiz (PDF) - Thanks to Christopher Hunter for sharing this quiz. -7fBt You will want your sound on or to plug in headphones . Terminology List Page 22 4. available:Blood Typing Booklet, Booklet Cut-Outs, and Booklet Key. Terms include: velocity, area of origin, bubble ring, projected pattern, Luminol, transfer stain, spines and other relevant terms.Can be used as a pretest, warm up, classwork assignment, quiz, or review. from the culprit. The mixture should be smooth. classify the lip prints and identify the one Using the digital scale, weigh 44 g of cornstarch and place it into the 2-cup container. File Fridays". Bryan maintains his innocence to this day. Bloodstains in a crime scene provides important clues as to the victim's movements at the time of an assault, and movement of the person's body . Reference Card: Hairs &Fibers (PDF) - This two-sided handout replaces the student worksheet for the presentation.Questions about the reference cards?See the note at the top of this page. (You could also have students record their answers in a lab notebook rather than write on the pages.) DNA Evidence (PDF). She, went around the Hit the sponge sharply with the hammer. Long for sharing this video and worksheet that In general, except for DNA analysis, the report found deficiencies in virtually every forensic technique including the analysis of hair, fibres, fingerprints and bite marks. If you look closely at the simulated blood drops, you will see that they form ellipses. Bones Magazine - A great Tool Marks Challenge (PDF) - This activity challenges students to match tool impressions from a set of 12 tools. - I used my microscope camera to capture images of the various hairs and fibers the students observed in class. of forensic anthropologists in crime Answers: (measurements may be slightly different due to printer quality, size, etc.) Good prices and service! document.. Small droplets that surround a bloodstain after it hits a surface 3. Forensics by Kalia and Carolyn. Each cache contains a cache card with 3-4 questions the students must answer or tasks they need complete. Sign up today for your The traces include drips, smears and spatters, which are created when drops of blood radiate from the impact of a bullet or blunt instrument until they encounter a surface and stain it. Say to Explorers: Bloodstain pattern analysis is a discipline of forensic science that examines bloodstain patterns at crime scenes. Now, put on your latex gloves and add some of the simulated blood to one of the sponges, as follows. 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! 2 pages of chronological questions that following seamlessly along with the episode. Our Experts won't do the work for you, but they will make suggestions, offer guidance, and help you troubleshoot. BPA analysts are trained to draw straight-line trajectories that follow the long dimension of each ellipse at that impact angle. - Visit this site for an assortment of great kits for your forensic science program. Repeat steps 211 at the same location, two additional times, with fresh materials. From the composition of blood and blood types to bloodstain pattern analysis, students investigate how blood evidence can be used in a crime investigation. that includes discussion questions, for each section. The DVD is available through During this unit students learn about the basics of blood evidence. scibuddy@sciencebuddies.org. 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. large butcher paper.Bone Murder & a Meal (PDF)-Thanks to Camron Stanley for sharing this lab investigating the science of vomit!The download includes student worksheets and teacher notes. If you are squeamish, then do not look at this site. Eyewitness Online (PDF). Hairs &Fibers Note Worksheet (PDF)- Student worksheet for the presentation. an online company for use with 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. Forensic Entomology Unit - An excellent resource for junior high and high school students; includes background information, case studies, and a game involving forensic entomology. Visible Proofs:Entomology in Action - This lesson introduces students to the blow fly's life cycle and the accumulated degree hour (ADH) used by forensic entomologists for estimating the time of death. classes. Use the contact form on their website to 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. Introductory Presentation:Power ofEvidence:Physical Evidence (PPT)Student The traces include drips, smears and spatters, which are created when drops of blood radiate from the impact of a bullet or blunt instrument until they encounter a surface and stain it. . Forensicnursing.org. What kind of evidence does a crime scene investigator collect at a crime scene? I challenge the students to use their notes and observation pages to identify each one. teacher also mark their lips on a plastic Hydroponics in a 2-Liter Soda Bottle STEM activity. for sharing this worksheet for use with the (2020, June 23). Hold the string taut and bring it all the way to the ground. lip prints on the screen so they could As the science of BPA progresses, a parallel challenge is to convert its results into new, practical and transparent procedures for murder investigations and courtroom presentations. Forensic Science Ato ZChallenge (PDF). When drag is not considered (blue) the paths fall short. That request was denied in 2018, but his lawyers are now preparing a last-ditch effort before the Texas Court of Criminal Appeals. For comparison, the linear trajectories overestimated the launch height by 100%. Check out my new It can also have real effects, according to Alicia Carriquiry at Iowa State University in the US. allergies that may be a concern with your Basic knowledge of trigonometry is required. - This lesson introduces students to the blow fly's life cycle and the accumulated degree hour (ADH) used by forensic entomologists for estimating the time of death. Our top priority is student learning. science and arson investigation. resource available from the Kids Discover 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 BPA is one of those areas in which science has a lot to say, she says. In Part 2, the students have to classify pictures of spatter as Swipe, Wipe, Pool, Transfer (Contact), Passive Drop, or Cast-off.
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