Find out how to use the Air Pollution Index chart from Bixy! Tell the difference between fresh air and polluted air. Identify activities that relate to the levels of the Air Quality Index. Lesson includes practical exercises. Recommended for grade K. Kids Educ kidseduc.com SUBSCRIBE TO US http://www.youtube.com/user/KidsEduc?sub_confirmation=1 See more children’s videos: http://www.youtube.com/user/KidsEduc