Page 38 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six

Biology for Secondary Schools

5. The total magnification in a microscope is calculated using the following
formula.
Eyepiece magnification × Objective lens magnification

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6. Observation, measuring, and experimentation are skills needed when
studying Biology.

7. Sense organs used to make observations are:

(a) Eyes for seeing.
(b) Nose for smelling.

(c) Ears for hearing.
(d) Tongue for tasting.
(e) Skin for feeling.

8. Scientific measurements are taken using specific instruments and are
expressed in specific units. Some basic biological measures are:

Measure Instrument SI unit
Mass Weighing balance Kilogram (kg)

Length Ruler, tape measure Metre (m)
Temperature Thermometer kelvin (K)

9. The scientific method is a set of steps that scientists use to study things
systematically. It involves:
(a) Identifying the problem.

(b) Formulating a hypothesis.
(c) Experimentation.
(d) Observation and recording data.

(e) Data interpretation.
(f) Conclusion.

(g) Reporting results.

10. Simple biological experiments are performed to study different features of
living things.

32 Student’s Book Form One Student’s Book Form One

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