Curated OER
What Causes Tooth Decay
Students investigate oral hygiene. For this personal health lesson, students discover the parts of a tooth and how to best protect them from disease. Students examine the effects of acids on tooth enamel and calcium.
Curated OER
Food Safety Lab-Part 3 Cross Contamination andHygiene
Learners observe the effect of croos contamination as they inoculate orange juice with penicillin mold from the refrigeration lab and active yeast solution from the sterilization lab. They experience a simulation of passing bacteria...