Crime Busters 2016 National Event Crime Scenario and Suspect Information Your kit should have been checked when you entered the event area. You may use only those materials listed on the rules during the competition. If it has not been checked yet, ask for assistance from a judge. You may disassemble and write on all the materials provided but you must reassemble and staple them before final submission. You must wear all the appropriate clothing and PPE during the event. Removing goggles during the event and/or not cleaning up your station at the end of the event will result in penalties. Your answers will be recorded on the WORKSHEET provided. Write your names, school, team number and station number on the top of your answer sheet. Perform the following activities as well as answering the related questions: A. Identify the 18 unknown powders, liquids and metals (#1, #2, #15 and #16 and mixtures) B. Identify the: 5 hairs 5 fibers. C. Perform paper chromatography on the 2 liquids (water solvent) and analyze the results. D. Analyze and/or compare the: 5 unknown fingerprints with the 50 known fingerprints 5 unknown DNA capillary electrophoresis profiles with the 40 known DNA profiles 1 unknown soil profiles with the 6 known soil profiles Interpret the blood spatter stain E. Write your evaluation of the scene Explain which groups(s), if any, were involved in the vandalism, including the basis for your conclusions and the strength of physical evidence for, or against, the group(s). The best analysis will discuss all the applicable physical evidence and all the groups, explaining any connections of innocence or culpability. Crime Scene Scenario: When Dean Franks, from Whodoneet State University (WSU), arrived at his office Monday morning, the outside of his office door was covered with Oreo cookies and crime scene tape. As he tried to enter his office, his way was blocked by hundreds of balloons filling the room from floor to ceiling. Dean Franks had been heart bombed. The despite the kindness of lemon iced cookies on his desk and notes of appreciation tied to each individual balloon, his door was vandalized with smeared mint Oreo cream, his antique glass sand timer broken, and papers blown all over the office from a window left open. Dean Franks suspects that it was one of the 4 college groups he nominated for community service awards: WSU Cheerleaders (CL) Epsilon Nu Tau business society (ENT) The Kappa Alpha Phi law society (KAP) The Pi Sigma Rho science fraternity (PSR) Police collected 5 fingerprints (CS-FP1-5) from various locations inside and outside the Dean s office. Five DNA profiles (CS-DNA1-5) were recovered from the balloons, as well as some of the string used to tie the balloons (#24) and hair stuck to the balloons (#19). Two unknown powders (#1, #2) were found near the Dean s desk with some stray soil (CS-SOIL). The broken glass from the sand timer had blood on it, and a blood spatter stain was discovered on the window sill (CS-BSP). Physical evidence was collected from each of the four off-campus houses where the groups live including fingerprints, DNA, hairs (#20-23), and fibers (#25-28). Soil samples were collected from outside each house, as Page 1 of 13
well as from outside the Dean s office window (DO-SOIL) and from the football field across the street from the Dean s office (FF-SOIL). Powders, solids and liquids (#3-18) were collected from each of the four houses. Additionally, fingerprints were collected from the office staff (OS-FP1-10). Recovered Physical Evidence: Fingerprints CS-FP1 CS-FP2 CS-FP3 CS-FP4 CS-FP5 CS-FP1 recovered from office assistant s desk, in a common area outside Dean s office CS-FP2 recovered on the outside of the Dean s office door CS-FP3 recovered from the side of a file cabinet inside the Dean s office CS-FP4 recovered from the arm of the Dean s office chair CS-FP5 recovered from the side of the Dean s office desk Unknown DNA profiles-recovered from balloons CS-DNA1 CS-DNA2 CS-DNA3 CS-DNA4 CS-DNA5 Page 2 of 13
Unknown Soil sample-recovered in Dean Franks office CS-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 38.3% >1000 μm Trace Magnetite 20.9% 400-1000 μm 2.5% Medium Brown Garnet Trace 200-400 μm 12.4% Feldspar 8.1% 100-200 μm 32.5% Tourmaline 12.5% 50-100 μm 23.7% Other minerals 16.5% 10-50 μm 16.6% Organic matter 3.7% <10 μm 12.3% Blood Spatter Stain-photographed in window sill Page 3 of 13
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Cheerleader House (CL): Head Cheerleader Monica Wolly CL is the female portion of the WSU cheer squad. They reside in a house on 3rd Street, west of the football field where they regularly practice. CL was given a service award for making stuffed animals for the children s hospital. The cheerleading squad said that they were out of state for the NCAA Men s Volleyball Championship Tournament. Powders, Liquids, Metals #3, #4, #5, #6 collected from CL house kitchen. Hair #20 was collected from the CL house living room. Fiber #25 was collected from the CL house living room. Soil--Q-SOIL1 was collected from the CL house front yard. CL-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 38.6% >1000 μm Trace Magnetite 20.6% 400-1000 μm 2.2% Medium Brown Garnet Trace 200-400 μm 12.9% Feldspar 8.4% 100-200 μm 32.9% Tourmaline 12.2% 50-100 μm 23.0% Other minerals 16.4% 10-50 μm 16.1% Organic matter 3.8% <10 μm 12.9% CL House Collected DNA Profiles CL-DNA1 CL-DNA2 CL-DNA3 CL-DNA4 CL-DNA5 CL-DNA6 Page 5 of 13
CL-DNA7 CL-DNA8 CL-DNA9 CL-DNA10 CL House Fingerprints (Assume all prints originate from right hand) CL-FP1 CL-FP2 CL-FP3 CL-FP4 CL-FP5 CL-FP6 CL-FP7 CL-FP8 CL-FP9 CL-FP10 Page 6 of 13
Epsilon Nu Tau (ENT) House: President Brad Thomas ENT is a coed group of business students. The guys house is located on 7 th Street, east of campus next to a lake with a beach. ENT was awarded the Mayor s Service Award for helping senior citizens file their tax returns. Brad stated that the entire group was at an Internal Revenue Service Form 3748 training seminar. However, that training has not been confirmed. Powders, Liquids, Metals #7, #8, #9, #10 Hair #21 was collected from the ENT house living room. Fiber #26 was collected from the ENT house living room. Soil ENT-SOIL was collected from the ENT house back yard. ENT-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 88.4% >1000 μm 0% Magnetite 1.2% 400-1000 μm 81% Yellow Tan Garnet 3.7% 200-400 μm 19% Feldspar Trace 100-200 μm 0% Tourmaline Trace 50-100 μm 0% Other minerals 5.8% 10-50 μm 0% Organic matter <1% <10 μm 0% ENT House Collected DNA Profiles ENT-DNA1 ENT-DNA2 ENT-DNA3 ENT-DNA4 ENT-DNA5 ENT-DNA6 Page 7 of 13
ENT-DNA7 ENT-DNA8 ENT-DNA9 ENT-DNA10 ENT House Fingerprints (Assume all prints originate from right hand) ENT-FP1 ENT-FP2 ENT-FP3 ENT-FP4 ENT-FP5 ENT-FP6 ENT-FP7 ENT-FP8 ENT-FP9 ENT-FP10 Page 8 of 13
Kappa Alpha Phi (KAP) House: President Kelly Fignewton KAP is a coed group of law students from WSU. The females live in a house on 3 rd Street west of campus. KAP was given an award for their work with the Minnetonka Soup Kitchen. President Fignewton stated that KAP was at the group s vice president s house preparing for next year s Mock United Nations competition, but there were a number of cars at the house on Sunday. Powders, Liquids, Metals #11, #12, #13, #14 Hair #22 was collected from the KAP house living room. Fiber #27 was collected from the KAP house living room. Soil KAP-SOIL was collected from the KAP house front yard. KAP-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 37.6% >1000 μm Trace Magnetite 21.8% 400-1000 μm 2.3% Medium Brown Garnet Trace 200-400 μm 12.1% Feldspar 8.2% 100-200 μm 32.8% Tourmaline 12.7% 50-100 μm 23.8% Other minerals 15.8% 10-50 μm 16.4% Organic matter 3.9% <10 μm 12.6% KAP House Collected DNA Profiles KAP-DNA1 KAP-DNA2 KAP-DNA3 KAP-DNA4 KAP-DNA5 KAP-DNA6 Page 9 of 13
KAP-DNA7 KAP-DNA8 KAP-DNA9 KAP-DNA10 KAP House Fingerprints (Assume all prints originate from right hand) KAP-FP1 KAP-FP2 KAP-FP3 KAP-FP4 KAP-FP5 KAP-FP6 KAP-FP7 KAP-FP8 KAP-FP9 KAP-FP10 Page 10 of 13
Pi Sigma Rho (PSR) House: President Chick Right The members of PSR are all male science and engineering students. They live in a house off Hwy 75, in a forested area, north-east of campus. PSR was given the STEM Service Award for reading to elementary school students. Chick said that the group spent the weekend at the PSR house watching the DOTA tournament on Twitch. Powders, Liquids, Metals #15, #16, #17, #18 Hair #23 was collected from the PSR house living room. Fiber #28 was collected from the PSR house living room. Soil--PSR-SOIL was collected from the PSR house back porch. PSR-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 10.2% >1000 μm 32% Magnetite 1.2% 400-1000 μm 27% Dark Brown Garnet 3.7% 200-400 μm 15% Feldspar 5.8% 100-200 μm 10% Tourmaline Trace 50-100 μm 5% Other minerals 57% 10-50 μm 2% Organic matter 22% <10 μm 9% PSR House Collected DNA Profiles PSR-DNA1 PSR-DNA2 PSR-DNA3 PSR-DNA4 PSR-DNA5 PSR-DNA6 Page 11 of 13
PSR-DNA7 PSR-DNA8 PSR-DNA9 PSR-DNA10 PSR House Fingerprints (Assume all prints originate from right hand) PSR-FP1 PSR-FP2 PSR-FP3 PSR-FP4 PSR-FP5 PSR-FP6 PSR-FP7 PSR-FP8 PSR-FP9 PSR-FP10 Page 12 of 13
Office Staff Fingerprints (assume all prints originate from the right hand) OS-FP1 OS-FP2 OS-FP3 OS-FP4 OS-FP5 OS-FP6 OS-FP7 OS-FP8 OS-FP9 OS-FP10 DO-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 18.2% >1000 μm 0% Magnetite 37.6% 400-1000 μm 0% Reddish Brown Garnet 41.5% 200-400 μm 0% Feldspar Trace 100-200 μm 15.7% Tourmaline Trace 50-100 μm 18.1% Other minerals 2.7 10-50 μm 56.4% Organic matter 0% <10 μm 9.8% FF-SOIL Composition, particle size, and color profile Mineral ID Mineral % Particle Size Size % Color Quartz 38.0% >1000 μm Trace Magnetite 21.2% 400-1000 μm 2.4% Medium Brown Garnet Trace 200-400 μm 12.7% Feldspar 8.0% 100-200 μm 32.0% Tourmaline 12.7% 50-100 μm 23.9% Other minerals 16.3% 10-50 μm 16.9% Organic matter 3.8% <10 μm 12.1% Page 13 of 13
2016 Crime Busters National Science Olympiad Event Worksheet Team number: Student 1: Student 2: Station number: Event Coordinator Only Notes/Penalties: Score: out of 309 Tie break points: You may disassemble these sheets. Staple them together prior to submission. A. Qualitative Analysis (5 points each for identity and basis for identification; mixtures are worth bonus for identifying all components) Unknown Identity Basis for identification Pts. #1 * #2 * #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 * Page 1 of 5 Total score for page:
#16 * #17 #18 Write out a balanced chemical equation for the following reactions (4 points each) Sugar in water Salt in water Baking soda in water Baking soda in acid Limestone in water Limestone in acid B. Hairs (2 points each for identity) Unknown Identify hair type (human, dog, cat, other) Pts. #19 #20 #21 #22 #23 Fibers (2 points each for identity) Unknown Identify fiber class (synthetic, natural-vegetable, natural-animal) Pts. #24 #25 #26 #27 #28 Draw 3 possible cross-sectional shapes for a synthetic fiber. (3 points) Page 2 of 5 Total score for page:
Name the indicated component (2 points) Complete the following recyclable plastics table (6 points) Chemical Chemical Name Structure -[CH2CHCl]-n Resin Code Pts 4 Polystyrene C. Paper chromatography (15 points total) Run paper chromatography on the two samples provided (#29 and #30) using the provided paper and water as a solvent. Is possible that compound #29 is in sample #30? Justify your answer. You must attach your chromatography paper to receive credit. (x points) D. Crime Scene Physical Evidence (29 points total) Fingerprints Identify the general pattern type for the 5 unknown fingerprints found at Dean Franks office. Assume right hand. (1 points each) CS-FP1 CS-FP2 CS-FP3 Page 3 of 5 Total score for page:
CS-FP4 CS-FP5 Compare the known prints with the unknown prints from Dean Franks office. Identify any matching known standards. If there is not a matching fingerprint, mark as Not Identified Misidentified prints will receive a penalty. (2 points each) CS-FP1 CS-FP2 CS-FP3 CS-FP4 CS-FP5 DNA Identify if any of the DNA samples recovered from Dean Frank s office match the DNA samples collected from the houses. Misidentified DNA will receive a penalty. (2 points each) CS-DNA1 CS-DNA2 CS-DNA3 CS-DNA4 CS-DNA5 Soil Samples Identify if the soil found in Dean Franks office could have come from any of the houses. Justify your answer. (2 points) CS-SOIL Blood Stain Pattern Spatter Stain Identify the spatter stain velocity from the photograph. (1 points) Identify the area of origin (inside office or outside the window). (1 points) Justify your answers Velocity Area of origin Page 4 of 5 Total score for page:
E. Crime Scene Analysis (90 points, English grammar and spelling count) Use the space below to discuss the physical evidence recovered from Dean Franks office. Properly connect the physical evidence analyzed from each of the houses to the crime scene Determine if any of the groups could be responsible for the vandalism. # of pts addressed Times x pts each Part E total Page 5 of 5 Total score for page:
2016 Crime Busters National Science Olympiad Event Worksheet Team number: Student 1: Student 2: Station number: Event Coordinator Only Notes/Penalties: Score: out of 307 Tie break points: You may disassemble these sheets. Staple them together prior to submission. A. Qualitative Analysis (5 points each for identity and basis for identification; mixtures are worth bonus for identifying all components) Unknown Identity Basis for identification Pts. #1 #2 Sand Flour All answers are 4 each Snad Sugar As long as there is some reasonable explanation, 1 point each exp 1 bonus pt for getting both unknowns 1 pt bonus for both answers #3 Ascorbic acid or Vitamin C 5 #4 Calcium carbonate 5 #5 Water 5 #6 Zinc 5 #7 Sodium chloride or table salt 5 #8 Cornstarch 5 #9 Isopropyl or rubbing alcohol 5 #10 Magnesium 5 #11 Flour 5 #12 Sugar 5 #13 Lemon juice 5 #14 Copper 5 #15 Salt Baking soda Calcium sulfate 2 pts bonus for all three * 11 * 11 * 17 Page 1 of 5 Total score for page:
#16 Sand Cornstarch 1 pt conus for both answers * 11 #17 Hydrogen peroxide 5 #18 Tin 5 Write out a balanced chemical equation for the following reactions (4 points each) Sugar in water 4 C6H6O6 (s) + H2O -> C6H6O6 (sol) + H2O Salt in water 4 NaCl (s) + H2O -> Na+ + Cl- +H2O Baking soda in water 4 HNaCO3 (s) + H2O -> Na+ + HCO3- Baking soda in acid 4 HNaCO3 + H+ -> Na+ + CO2 + H2O Limestone in water 4 CaCO3 (s) + H2O -> CaCO3 (s) + H2O Limestone in acid 4 CaCO3 + 2H+ -> Ca2+ + H2O + CO2 B. Hairs (2 points each for identity) Unknown Identify hair type (human, dog, cat, other) Pts. #19 Dog 2 #20 Human 2 #21 Cat 2 #22 Dog 2 #23 Cat 2 Fibers (2 points each for identity) Unknown Identify fiber class (synthetic, natural-vegetable, natural-animal) Pts. #24 Synthetic 2 #25 Natural Vegetable 2 #26 Natural Vegetable 2 #27 Synthetic 2 #28 Natural Animal 2 Draw 3 possible cross-sectional shapes for a synthetic fiber. (3 points) 3 Page 2 of 5 Total score for page:
Cuticle Medulla 4 Name the indicated component (2 points) Complete the following recyclable plastics table (6 points) Chemical Chemical Name Structure Resin Code Pts Polyvinyl chloride -[CH2CHCl]-n 3 6 Low density polyethylene -[CH2CH2]-n 4 6 Polystyrene -[CH(C6H6)CH2]-n 6 6 C. Paper chromatography (15 points total) Run paper chromatography on the two samples provided (#29 and #30) using the provided paper and water as a solvent. Is possible that compound #29 is in sample #30? Justify your answer. You must attach your chromatography paper to receive credit. (x points) 10 points for technique 29 is in 30, must state that each lane has a yellow spot, and that the spots moved approximately the same distance 0 points for no paper submitted Justification must be consistent with paper D. Crime Scene Physical Evidence (29 points total) Fingerprints Identify the general pattern type for the 5 unknown fingerprints found at Dean Franks office. Assume right hand. (1 points each) CS-FP1 Loop 1 CS-FP2 Whorl 1 CS-FP3 Arch 1 Page 3 of 5 Total score for page:
CS-FP4 Loop 1 CS-FP5 Whorl 1 Compare the known prints with the unknown prints from Dean Franks office. Identify any matching known standards. If there is not a matching fingerprint, mark as Not Identified Misidentified prints will receive a penalty. (2 points each, -1 for misid) CS-FP1 OS-FP3 2 CS-FP2 Not identified 2 CS-FP3 OS-FP10 2 CS-FP4 KAP-FP4 2 CS-FP5 KAP-FP8 2 DNA Identify if any of the DNA samples recovered from Dean Frank s office match the DNA samples collected from the houses. Misidentified DNA will receive a penalty. (2 points each, -1 for misid) CS-DNA1 KAP-DNA9 2 CS-DNA2 KAP-DNA3 2 CS-DNA3 No match 2 CS-DNA4 CL-DNA6 2 CS-DNA5 KAP-DNA6 2 Soil Samples Identify if the soil found in Dean Franks office could have come from any of the houses. Justify your answer. (2 points) CS-SOIL KAP-SOIL, CL-SOIL, FF-SOIL All 3 for all points 2 Blood Stain Pattern Spatter Stain Identify the spatter stain velocity from the photograph. (1 points) Identify the area of origin (inside office or outside the window). (1 points) Justify your answers Velocity Medium 1 Area of origin Outside office 1 Page 4 of 5 Total score for page:
E. Crime Scene Analysis (88 points, English grammar and spelling count) Use the space below to discuss the physical evidence recovered from Dean Franks office. Properly connect the physical evidence analyzed from each of the houses to the crime scene Determine if any of the groups could be responsible for the vandalism. 4 points each for each point discussed KAP is the most likely suspect o Flour #1 = #11 o Sugar #2 = #12 o Lemon cookies = #13 o Same kind of hair #19 = #22 dog o Same kind of fiber #24 = #27 synthetic o DNA on balloon 1 o DNA on balloon 2 o DNA on balloon 5 o FP 4 in office o FP 5 in office o Soil in office CL may be involved o DNA on balloon 2 o May have helped blow balloons but not placed them o Soil in office o Soil is same as KAP though ENT is not involved PSR is not involved o Even though they have sand #1,2 = #16, there is no cornstarch in office Blood on window shows that the vandals likely exited office through window. No information about how they entered. # of pts addressed Times 4 pts each Part E total Page 5 of 5 Total score for page: