2/2/12 A/B DayLEQ: How can chemicals impact humanhealth?1. What is a chemical reaction?C3H8 + 5 O2 4 H2O + 3 CO22. What are the reactants in the abovereaction?3. What are the products in the above reaction?4. If there are 15.7 grams of reactants in achemical reaction, what is the mass of theproducts?5. What is a precipitate?
Agenda:1.Practice material from last class2.Begin new LEQ!
Let’s Practice:Chemical Reactions andthe Law of Conservation of Matter
Today’s LEQ: How can chemicals impact human health?By the end of today, you should be able to…1. Describe how chemicals can harm or help human health2. Examine the symptoms of some common diseases and use symptoms to come up with a diagnosis
1. You and your partner have 15 minutes toread the information included in your medicalschool curriculum.2. After you finish reading about eachdisease, answer the discussion questions withyour partner!3. In your notebook, write FOUR KEY FACTSabout each disease!4. Once you finish, RAISE YOUR HAND!
Summarizer:Number your paper 1-5 (don’t skip lines!)
1. Which chemical has beenidentified as a cause of heartdisease? A. Uric Acid C. Radon B. Cholesterol D. Glucose
2. What is the cause of FAS? a) Use of alcohol during pregnancy b) Too much cholesterol in food c) An elevated level of calcium in the blood d) Overexposure to household cleaning products
3. What name is given to anychemical that is shown to causecancer? a) Oxidant b) Contaminant c) Carcinogen d) Carbon-based
4. Which disease is associated with insulinand control of glucose?a) Asthmab) Kidney diseasec) Fetal Alcohol Syndromed) Diabetes
5. Some of the earliest cases of cancerwere observed in factory workers whoapplied a certain kind of paint on watches.These workers would wet theirpaintbrushes with their lips. What wouldbe evidence that this paint caused thecancer? a) The paint contained bacteria that infected the workers b) The paint contained chemicals that caused cell mutations c) The paint contained viruses that broke down the workers’ immune systems d) The paint contained molecules that interfered with the body’s ability to produce insulin