1. What are ruminants?

2. Give two examples of ruminants.

1. What is force?

2. State two effects of forces on the body.

1. Mention two ways in which the carbon cycle can be maintained.

2. State one environmental effect when the carbon cycle is disrupted.

1. Mention the three sub-atomic particles.

2. State the relative charge on each of the three sub-atomic particles mentioned in (d) (i) above.

3. Name the particle formed when an atom loses an electron.

1. What is a mixture?

2. Explain why some mixtures are thoroughly stirred before they are used.

1. What is reflection of light?

2. State two characteristics of the images formed by plane mirrors.

1. What is a fertilizer?

2. Give one example of an inorganic fertilizer.

1. What is indiscriminate sex?

2. State two dangers of indiscriminate sex on humans.

1. What is a simple machine?

2. Give two examples of a simple machine.

1. What is rusting?

2. State two effects of rusting.

1. What are food nutrients?

2. Classify the following food items as carbohydrate, fats and oil, or protein: Beans, palm fruits, meat, margarine, bread, and maize.

1. State two effects of malnutrition in farm animals.

2. Mention one disease of farm animals caused by a virus.

1. What is soil erosion?

2. Name two methods of controlling soil erosion.

Explain each of the following terms as used in ecology:

1. Adaptation;

2. Endangered species.

1. Give one example of hard water.

2. Explain why it is advisable to drink water which is hard.

1. What is magnetic field?

2. State two methods of making magnets.

1. Define each of the following terms:

   1. solvent;

   2. solute.

2. Name one common solvent used in the home.

1. Explain the following terms as used in animal production:

   1. ration;

   2. dehorning.

1. What is an element?

2. Write down the symbol of each of the following chemical substances:

   1. Potassium;

   2. Sulphur.

1. Explain each of the following terms:

   1. Mixed farming;

   2. Mixed cropping.