Lab Exercise Activity that includes pre-lab activity, post-lab activity, and student lab exercise handouts. Instructor keys provided for all activities. Materials Needed Part 1:PPE: Gloves, Goggles, Lab coat or apronPer Student: Cotton Swab for Saliva TestPer Class:- 15 cups with household substances (1/3 full)- Household substances (distilled water, milk, detergent, coke, mt. dew, ammonia, bleach, orange juice, antacid, vinegar, lemon juice, shampoo, mouthwash, apple juice)- 15 glass rods for