Hydrogen is represented by the chemical symbol H 2 . This symbol represents
2
A metal expands when there is
3
A safety device which opens an electric circuit to prevent too much current from passing through the circuit is the
4
An object is placed 20 cm in front of a plane mirror. The distance between the object and the image is
5
In which of the following circuit diagrams below will the bulb light?
6
The source of all forms of energy can be traced to
7
When mango is falling from a tree, its potential energy is changed to
8
Electricity is used by appliances to do work. This means that electricity is a form of
9
A force of 2N moves a body through a distance of 10 m. Calculate the work done.
10
The diagram below shows a lever system used to move a stone. Use it to answer the question below
11
The diagram below shows a lever system used to move a stone. Use it to answer the question below
12
An omnivore is an animal that feeds on
13
A meal containing all the essential nutrients in the right amounts is said to be
14
The disease associated with insufficient in-take of proteins in children is
15
When testing for proteins in a food substance using Fehling's solution, the expected colour change is
16
The substance that enables green plants to trap sunlight for the manufacture of food is
17
In man, the conversion of poisonous substances into harmless forms takes place in the
18
Which of the following life processes is represented by the equation below?
19
Chlorine gas is passed through water during filtration to
20
Arrange the following sources of water in the order of increasing contamination.
21
A solution in which no more solute will dissolve at a given temperature is said to be
22
A clear solution of sugar was cooled from 100 o C to 25 o C. Some solid sugar was seen to have formed out of the solution after the cooling. This shows that sugar
23
Water is sometimes referred to as a universal solvent because it
24
The charge of sulphur in the compound SO 2 is
25
The part of the soil that supports plant growth is that part which
26
Plants do not grow well in gravel because the
27
Which of the following parasites lives in the blood of humans?
28
The carrier of the malaria parasite is the
29
Which of the following practices is a method of controlling guinea worm disease?
30
The humidity of the atmosphere is measured with
31
How long does it take the moon to move completely around the earth?
32
Steel is an example of a
33
Which of the following elements is a metal?
34
Metals that are usually used to make ornaments have low
35
The food processing method in which germs are prevented from multiplying by applying a low temperature is
36
The function of blood platelets is to
37
A fish is able to swim with little resistance in water because it has
38
When a person jumps up, he/she is able to come down because of the
39
A metal displaces 5.0 cm 3 of water when completely immersed in water. If the mass of the metal is 35.0 g, calculate its density.
40
Oxygen from the air is able to get into the blood by
