Page 32 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six

Biology for Secondary Schools

point of water is 100 °C and its freezing point is 0 °C. Figure 2.26 shows an
example of using a thermometer to measure temperature.

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Figure 2.26: Using thermometer to measure temperature of water

Activity 2.5: Measuring the 5. What is your body temperature?
temperature of different things 6. Use the thermometer to measure
the temperature of hot water,
Materials: Thermometer, beakers, hot cold water, and the ice cubes by
water, cold water, and ice cubes dipping the bulb into a container
with the substance you want to
Procedure measure. Observe the movement
1. Carefully take a thermometer of the mark inside the thermometer
from its case and hold it at the until it stops moving. Record the
top. Do not touch the bulb. number that corresponds to the
2. Shake it for a few seconds, then mark.
read the number that corresponds 7. Record the temperature in degrees
to the mark. Celsius in your notebook.
3. Put the thermometer bulb under 8. Compare your results with those
your armpit and wait for two of your classmates. Are they
minutes. similar?
4. Read the number that corresponds
to the mark.

26 Student’s Book Form One Student’s Book Form One

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