Curated OER
Communicable Diseases
In this communicable diseases worksheet, students explain what causes most types of diseases. Then they describe the difference between a disinfectant and an antiseptic. Students also determine ways that communicable diseases can be spread.
Science Buddies
Science Buddies: Disinfectants
This experiment asks you to compare different types of cleaning agents. Household cleaning products, like bleach or Lysol, are included to see which ones kill the most bacteria. Different brands of antibacterial hand soap or dish soap...
US Environmental Protection Agency
Epa: List of Drinking Water Contaminants
Table outlines the EPA's standards for safe drinking water, defining levels of contaminants and listing possible sources of these contaminants.