Pay in 4 interest-free payments of $3.42 Learn more
Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Through a lab investigation
• Heavy-duty 18" dia aluminum sign
• 120 flashes per minute
18" x 24" (White/Red)
How Clean is the Air? (Kit) chemistry Through a lab investigationLearn what air pollution is and how weather and geography affect it. Conduct experiments to test the air that you breathe everyday for pollutants. This kit comes complete with instruction manual, the chemicals and apparatus needed to conduct several air quality tests.
US$ 18.95
US$ 14.16
US$ 44.40
US$ 14.40
US$ 179.40
