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1. Record the outside temperature. Be sure to record your temperature in degrees Fahrenheit

2. Bring your crickets outside or sit in a yard where you can hear the crickets. Sit quietly for a while to get used to the noises. See if you can identify the chirp of one particular cricket. 3. Using the stopwatch, count the number of chirps that cricket makes in 14 seconds. How many was it? Make sure that you are counting the chirps of one indi- vidual cricket. 4. Repeat Step 3 three more times. Why is that important? 5. Take the average of the four counts. What was the average number of chirps? 6. Add 40 to that average number. What is the approximate temperature, ac- cording to the crickets? 7. How does this compare with the actual temperature you measured with the thermometer? 8. What would you expect to find if the temperatures were warmer? Or cooler? Explain.

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