Handle thermometers with care. Lead discussion to the point of realizing that we cannot tell the temperature accurately just by feeling it or observing our surroundings. We depend upon an instrument called a thermometer for accurate readings. Have students look at their thermometers. Your eyes should be level with the top of the liquid in the tube to read it accurately.
Activity Give each student or pair of students a thermometer.
Review safety precautions and fact that if thermometers are dropped or banged on a table they will break. Have students read their thermometers in the room. Record their findings on the handout . Go into another room or hallway. Have students read their thermometers and write down their findings.