Скачать презентацию Home Sweet Home The Mysterious Death of Janette Скачать презентацию Home Sweet Home The Mysterious Death of Janette

898ed16b02864372edf2ec78be5c9984.ppt

  • Количество слайдов: 31

Home Sweet Home? The Mysterious Death of Janette Williams Tracy Suggs Chemistry Vestal High Home Sweet Home? The Mysterious Death of Janette Williams Tracy Suggs Chemistry Vestal High School Vestal, New York www. bloggingbaby. com

Home Sweet Home? The Mysterious Death of Janette Williams This learning activity is an Home Sweet Home? The Mysterious Death of Janette Williams This learning activity is an interrupted case study concerning the safe use of chemicals found in the home. http: //www. pbs. org/hometime/house/environ/chem. htm http: //www. yourhome 123. com/infocenter. asp? User. ID=10768&Subject. ID=1&Article. ID=93

Goals The students will investigate the toxicity of chemicals found in household cleaning products. Goals The students will investigate the toxicity of chemicals found in household cleaning products.

Time Frame Overview 4 - 5 Days of Student Centered Activities – – – Time Frame Overview 4 - 5 Days of Student Centered Activities – – – Request for Assistance Police Report Student Research Autopsy & Forensic Report Solve Chemical Mystery Extensions http: //www. boyscoutstuff. com/Galleries/Equipment/equipment. html

Chemistry Core Standards III. Moles and Stoichiometry • • a compound as a substance Chemistry Core Standards III. Moles and Stoichiometry • • a compound as a substance empirical and molecular formulas http: //www. moleday. org/ IV. Chemical Bonding • • compounds differ by properties ionic and molecular compounds http: //www. kean. edu/~chem/

Chemistry Core Standards V. Physical Behavior of Matter • • • classification of matter Chemistry Core Standards V. Physical Behavior of Matter • • • classification of matter composition of a mixture proportions of components in mixture solutions as homogeneous mixtures kinetic molecular theory http: //thegreatwaterodyssey. com/third. html

Chemistry Core Standards VII. Organic Chemistry • organic compounds www. ktf-split. hr/glossary/en_o. php? def=benzene Chemistry Core Standards VII. Organic Chemistry • organic compounds www. ktf-split. hr/glossary/en_o. php? def=benzene IX. Acids, Bases, and Salts • behavior of acids and bases www. biologie. uni-hamburg. de/. . . /e 16/essig. htm

Living Environment Core Key Idea 5: http: //www. rpi. edu/dept/phys/Dept 2/APPhys 1/torque/node 2. html Living Environment Core Key Idea 5: http: //www. rpi. edu/dept/phys/Dept 2/APPhys 1/torque/node 2. html Organisms maintain a dynamic equilibrium that sustains life. 5. 2 Explain disease as a failure of homeostasis a. Homeostasis is constantly threatened h. Disease caused by toxic substances

Day 1 Request for Assistance Dear Chemical Investigators, _______________________________ _______________________________ With Respect, Murray Jones Day 1 Request for Assistance Dear Chemical Investigators, _______________________________ _______________________________ With Respect, Murray Jones Unexplained death of Janette Williams

Day 1 Official Police Report Describes scene of death Evidence of cleaning house http: Day 1 Official Police Report Describes scene of death Evidence of cleaning house http: //www. leonuniform. com/Emblems_Badge. State. htm

Day 1 Official Police Report Recorded statements § Co-workers § Neighbor § Husband http: Day 1 Official Police Report Recorded statements § Co-workers § Neighbor § Husband http: //www. leonuniform. com/Emblems_Badge. State. htm

Day 1: Task 1 Process Official Police Report Answer questions together in group www. Day 1: Task 1 Process Official Police Report Answer questions together in group www. fotosearch. com/EYW 241/ei 00447/

Day 1: Task 2 Background Information http: //www. niaid. nih. gov/ncn/newsletters/nl 081503. htm 1. Day 1: Task 2 Background Information http: //www. niaid. nih. gov/ncn/newsletters/nl 081503. htm 1. 2. 3. 4. What is Toxicology? Exposure, Routes of Entry, Dose-Response Reading Household Labels Risk / Benefit Assessment http: //www. uwosh. edu/faculty_staff/fischert/Lincoln/third. htm

Day 2 Jigsaw Activity Students share background information with their team members. Day 2 Jigsaw Activity Students share background information with their team members.

Day 2: Task 3 Checking for Understanding The Chief Chemical Investigator “certifies” the Chemical Day 2: Task 3 Checking for Understanding The Chief Chemical Investigator “certifies” the Chemical Investigators http: //www. grupoisotex. com/Empresas. htm

Day 2: Task 4 Learning More About Household Product Labels Federal Hazardous Substance Act Day 2: Task 4 Learning More About Household Product Labels Federal Hazardous Substance Act (FHSA) http: //www. penickgroup. com/ http: //www. healthmarvels. net/

Day 2 -3: Task 5 Recording information from household product labels pested. unl. edu/pat Day 2 -3: Task 5 Recording information from household product labels pested. unl. edu/pat 2. htm

Day 3: Task 6 Evaluating information from household product labels www. cosmos-contractfilling. com/household. html Day 3: Task 6 Evaluating information from household product labels www. cosmos-contractfilling. com/household. html

Day 4 Coroner’s Report www. abc. net. au/coroner/ep 03. htm Day 4 Coroner’s Report www. abc. net. au/coroner/ep 03. htm

Day 4 Forensic Specialist’s Report chemistry. ewu. edu/forensics/ Day 4 Forensic Specialist’s Report chemistry. ewu. edu/forensics/

Day 4 Final Report from the Chemical Investigators http: //www. private-investigations-detectives-investigators-sweden. com/ Day 4 Final Report from the Chemical Investigators http: //www. private-investigations-detectives-investigators-sweden. com/

Possible Day 5 3 minute presentation by each team of Chemical Investigators Possible Day 5 3 minute presentation by each team of Chemical Investigators

Possible Scenario Mysterious Death Solved • • unmarked bottle of chlorine bleach acidic toilet Possible Scenario Mysterious Death Solved • • unmarked bottle of chlorine bleach acidic toilet bowl cleaner bleach added (remove rust stains? ) chlorine gas generated exits bathroom twisting the rug collapsed on kitchen floor gasping, scratched throat, lost consciousness

Chemistry of Bleach + Acid Active ingredient in bleach; sodium hypochlorite (Na. OCl) Hypochlorous Chemistry of Bleach + Acid Active ingredient in bleach; sodium hypochlorite (Na. OCl) Hypochlorous acid (HOCl) formed by hydrolysis: Na. OCl + H 2 O ↔ HOCl + Na+ + OH− Active ingredient in Lysol Toilet Bowl Cleaner; hydrochloric acid (HCl) When bleach and acid are mixed; HOCl + HCl ↔ H 2 O + Cl 2 ↑

Moral of the Story • ? Moral of the Story • ?

Moral of the Story • Do not mix chlorine bleach with any other household Moral of the Story • Do not mix chlorine bleach with any other household cleaners. • Read the labels of household products. • Never transfer chemicals into unmarked containers.

Extensions • ? • ? Extensions • ? • ?

Extensions • Toxicology Lab • MSDS • p. H’s of household chemicals • Antifreeze Extensions • Toxicology Lab • MSDS • p. H’s of household chemicals • Antifreeze and Colligative properties • Healthy cleaning alternatives • Chemistry of household products • Home survey of household products http: //www. philatron. com/coiled-extensioncord /

Suggested Household Chemicals WD 40®, Heet®, Goop®, Prestone® Antifreeze Pic® Ant Control Systems, Brasso®, Suggested Household Chemicals WD 40®, Heet®, Goop®, Prestone® Antifreeze Pic® Ant Control Systems, Brasso®, Mr. Metal® Whink® Rust Remover, Lysol®, Lime-A–Way®, Windex® Easy Off®, Parsons’® Ammonia, Arm and Hammer® Dial® Hand Sanitizer, Goo Gone®, Cascade® Soft Scrub®, Moth Balls, Washing Soda RIT® White Wash, Clorox® Bleach, Oxi Magic, Bounce® Toilet Bowl Cleaner, Draino®, Sani Flush®

34 Prepared Labels in Appendix B AMERICA’S #1 OVEN CLEANER! EASY-OFF® HEAVY DUTY ORIGINAL 34 Prepared Labels in Appendix B AMERICA’S #1 OVEN CLEANER! EASY-OFF® HEAVY DUTY ORIGINAL OVEN CLEANER CUTS THROUGH TOUGH BAKED-ON FOOD AND GREASE KEEP OUT OF REACH OF CHILDREN. DANGER: CAUSES BURNS TO SKIN AND EYES ON CONTACT. HARMFUL IF SWALLOWED. CONTENTS UNDER PRESSURE. READ PRECAUTIONS ON BACK EASY-OFF® HEAVY DUTY OVEN CLEANER Effectively cleans warm or cold ovens! Ideal for cleaning ovens, broilers, barbeque grills, & stainless steel surfaces. READ WARNINGS, PRECAUTIONARS AND ENTIRE LABEL BEFORE USE. NOTE: FOLLOW DIRECTIONS ON SAFETY CAP TO REMOVE IT. DO NOT USE KNIFE OR OTHER TOOL TO PRY CAP. DOING SO MAY PUNCTURE CONTAINER. KEEP OUT OF REACH OF CHILDREN. DANGER: Contains sodium hydroxide (LYE). WILL BURN SKIN AND EYES. Avoid contact with skin, wyes, mucous membranes, and clothing. HARMFUL IF SWALLOWED. Do not ingest. AVOID BREATHING SPRAY MIST. WEAR RUBBER GLOVES WHEN USING.

The End Lesson goals; • To use EHS as a conduit… • To create The End Lesson goals; • To use EHS as a conduit… • To create a chemical mystery… http: //ag. arizona. edu/nsc/new/efnep/goals. htm • To create a need to know about …. EHS! • To discover Chemistry and Biology are all around us.