obeservation table of time and temperature of 123456789
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Table 1: Temperature of Frozen Water Over Time Temperature Time (min.) Observation -10 C 0°C 1°C 1.6 C 2.6°C 4 C 6°C Water is frozen Water is still frozen Ice is attacked to thermometer but unstuck with the tube the surface is still ice, the bottom of the tube is water Ice chunk is getting smaller, more and more melt to water Ice continued melting, more and more water All melt to water 0 5 10 15 20 25 30 Boiling Water LAB SAFETY: Use caution when handling boiling water. Monitor the apparatus at all times and never handle a hot pan without a hot pad or oven mitt. 1. Fill a pot halfway with water and place it on the stove top 2. Place and hold the thermometer in the center of the water 3. Turn on the stove to bring the water to a boil. Observe the temperature change during the heating process. Once the water begins to boil, wait one minute and record the temperature on the thermometer in Table 2 4. Wait five minutes and observe another reading of the thermometer. Record the temperature in Table 2. Table 2: Temperature of Boiling Water Over Time Time (min.) Boiling Temperature (°C) 97 C 97°C 5
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