Procedure 1. Measure the temperature in both containers prior to turning on the light bulb. Record the temperature in the BEFORE column on their Greenhouse Effect Data Collection Table. a. It is important to know the temperature both before and immediately after the light is turned on. This provides an initial starting point so changes in temperature can be discussed accurately. 2. TURNING THE BULB ON a. Begin timing immediately after turning the light on. b. Measure and record temperature in the 0-minute column on the worksheet. 3. 2-MINUTE INTERVALS: Take and record temperature measurements on the Greenhouse Effect Data Collection Table every 2 minutes for the first 8 minutes of the Greenhouse Effect Laboratory experiment with the light on (data provided by instructor hi!) . a. Record the temperature in the correct time column as needed. b. At the end of the 6-minute period, students should discuss and note which container exhibited the greatest greenhouse effect. In other words, which atmosphere container had the greatest heat increase Control ? 4. Turn off the light bulb immediately after the temperatures are recorded for the 8-minute interval. Remind students that they will need to make one more measurement at the 10-minute