The diagrams below are illustrations of the male and female reproductive systems for humans.

Study them carefully and answer the questions that follow.

1. Name each of the parts labelled I, II, V, VI, VII, and VIII.

2. State the function of each of the parts labelled III, IV, and VII.

3. Name the labelled part where each of the following processes take place:

   α) Fertilization;

   β) Production of sperm;

   γ) Ovulation.

4. Name two common infectious diseases that affect both the male and female reproductive system.

The diagrams below are illustrations of different devices used in the farm.

Study them carefully and answer the questions that follow.

1. Give a common name for the devices illustrated.

2. Name each of the devices labelled A, B, and C.

3. State one use of each of the devices named in (ii).

4. State two effects of the use of the device C on the soil.

5. State two ways of prolonging the usefulness of the device labelled A.

1. Draw the symbols for each of the following electronic components:

   α) Resistor;

   β) (p-n junction) diode;

   γ) Cell;

   δ) Light Emitting Diode / LED.

2. Use the symbols drawn in (i) together with a switch to draw a circuit diagram to demonstrate forward biasing of a (p-n junction) diode and the light emitting diode.

3. State the effect of the resistor on the (p-n junction) diode and the light emitting diode when the circuit is closed.

The following activities were carried out in the laboratory.

Study them carefully and answer the questions that follow.

1. 10 g of iodated salt was added to 150 ml of water in a beaker. The mixture was stirred thoroughly.

2. Vegetable oil was added to a quantity of water in a corked flask and shaken vigorously, then allowed to stand for some time.

3. Few grams of grinded charcoal were added to water in a beaker and stirred vigorously, then allowed to stand.

1. State what will be observed in each of the activities I, II, and III.

2. Suggest an aim for the experiment.

3. State one difference between what is observed in I and III.

4. State a method of separation for the activity carried out in II.