Procedures • Draw a smoothly curving line connecting points on the map where temperatures are the same. • 40s line • 50s line • 60s line • 70s line • 80s line
Procedures 2. Retrace the lines darker once you are finished correcting your mistakes. 3. Using colors, shade each temperature range a different color. • 30s = purple • 40s = blue • 50s = green • 60s = yellow • 70s = orange • 80s = red 4. Make a temperature/color key. (Copy the above key onto the front of the map.)
Questions • How do the isotherm help you to understand what weather is like in different parts of the country? • How might this be useful in forecasting the weather conditions in a particular area? • What patterns can you see in temperatures? Where is it typically warmer? Where are the temperatures typically cooler? • What reasons can you think of to explain the temperature patterns you notice?