The Acid rain test kit is great to use in the classroom or for science fairprojects to determine if you have acid rain in your area, Kit Includes: 15ml Low Range pH Indicator, 6 Test tubes, Color Chart
Air Microbe Hunter, Predict which environmental conditions are favorable to airborne microbes. Topics include bioaerolsols, cloud chemistry, precipitation and more. Four activites plus STEM extensions. Paddles supplied for the first two activities. Refills available