Page 19 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six

Biology for Secondary Schools

(a) Forceps for holding specimens. Thermometer
(b) A pair of scissors for cutting A thermometer is an instrument used
specimens or objects. to measure temperature. An example of
(c) Scalpels for cutting. a thermometer is shown in Figure 2.8.
(d) A needle for loosening internal
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parts.
(e) Pins for holding specimens in
place.
(f) Hand lens for magnifying small
specimens or their parts.

Figure 2.8: Thermometer

Heat sources
Heat sources are used for heating
various things in the laboratory.
Examples of heat sources in the
laboratory are Bunsen burner, kerosene

Figure 2.7: Dissecting kit stove, and spirit burner, as shown in
Figure 2.9.

Figure 2.9: Heat sources (a) Bunsen burner (b) kerosene stove (c) spirit burner

Mounting needle
A mounting needle is used to lift small delicate specimens. An example of a
mounting needle is shown in Figure 2.10.

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