Science 8 – Helgeson Geologic Time Wheel Steps: 1. Click on Excel icon. 2. Type in the values below on Sheet 1 in Column A. Years Before Present 4,600,000,000 3,500,000,000 1,200,000,000 600,000,000 500,000,000 400,000,000 290,000,000 225,000,000 200,000,000 160,000,000 70,000,000 2,000,000 3. 4. 5. 6. Click on Insert and select Pie Chart. Name the chart Geologic Time Wheel (Layout, chart title, above chart). Click on Design, move chart location, select “new sheet”. Use the textbox and arrow icons from the insert menu to label the chart. Use the occurrence names below as labels. Be sure to match up the occurrence to the correct location on the time wheel. Occurrence Oldest Animals Oldest Plants First Birds Earliest Man Cenozoic Era Begins Paleozoic Era Begins First Fish First Amphibians Earth’s Beginning First Mammals First Reptiles Mesozoic Era Begins 7. Insert a textbox and type your name and class period. 8. Print a copy to turn in.