Page 31 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six

Biology for Secondary Schools

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Figure 2.25: Measuring the height of a student

Activity 2.4: Measuring length of Temperature
objects Temperature is the degree of hotness or
coldness of a substance. It is a physical
Materials: Ruler, paper, a leaf or a property that explains the common
small dried fish, notebook, and a pen notions of hot and cold. The common
or pencil units for measuring temperature are

kelvin (K), degrees Celsius (°C), and
Procedure degrees Fahrenheit (°F). These units
1. Take a leaf and put it on a piece relate as follows:
of paper. Trace the outline of
the leaf.
2. Put two marks at the extreme
points of the leaf outline.
3. Join the two points by a
straight line.
4. Put the zero mark of the ruler at
first mark and read the length The normal human body temperature is
at the second point. between 36 °C and 37 °C.
5. Record the measurement in
your notebook. Thermometer is used to measure
6. Compare your findings with temperature. It can measure human
those of your classmates. Did body temperature and temperature
you get similar measurements? of liquids, such as water. The boiling

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