Each student needs:

• Air Pollution in the Pacific Northwest Worksheet
• computer with Microsoft Excel
• Starter xls (Excel) file (see attachment)
• pen or pencil
• Excel Step-by-Step Instructions for students, contained in the Teacher Supplemental Information

To share with the entire class:

• computer with Microsoft Excel for teacher's use
• (optional) digital projector connected to the teacher's computer
• (optional) overhead projector and transparencies of some attachments
• (optional) road map of Washington (or your region of study for this activity)