Name four weather measuring instruments.

Name the stages in the life cycle of a mosquito.

1. List two properties of water.

2. Explain why it is advisable to wash clothes with soft water.

State three ways in which soil profile is important.

List three modes of heat transfer.

1. What is a deficiency disease?

2. Name three deficiency diseases in humans.

State two ways in which each of the following factors causes depletion of soil resources:

1. Burning;

2. Leaching.

List three processes that can change matter from one state to another.

1. What is a satellite?

2. Give three uses of artificial satellites.

State the composition of each of the following alloys:

1. Brass

2. Steel

3. Bronze

Name three cultural practices used in vegetable production.

List four parts of the respiratory system in humans.

1. What is a force?

2. State two ways in which force could affect a body.

1. What is a chemical change?

2. State three differences between chemical change and physical change.

Name three physical properties of soil.

Mention three diseases of the circulatory system in humans.

Write the systematic name for each of the following compounds:

1. H₂O;

2. MgO;

3. CaO;

4. CaCl₂.

Name the instrument used in measuring the following:

1. Length of a rope;

2. Mass of a stone;

3. Temperature of a liquid;

4. Volume of a liquid.

List three factors that influence vegetable crop production.

Name four stages in the cycle of a flowering plant.