This document contains a worksheet with 6 problems about calculating rates of change. The problems involve calculating the rate of change for: 1) A hot air balloon rising from 100m to 400m in 3 minutes. 2) A glacier advancing from 2010m to 1780m in 5 years. 3) A skydiver falling 100m in 10 seconds. 4) A missile flying 20 miles in 10 minutes. 5) A student's grade dropping from 95 to 60 in 3 weeks. 6) A patient's blood pressure dropping from 210 mm/Hg to 100 mm/Hg in 10 minutes.