CIDESCO EXAM LATEST 2025/2026 WITH CORRECT QUESTIONS AND
DETAILED ANSWERS/ALREADY GRADED, Exams of Advanced Education
I Biological and non-biological substances both need oxygen for their
existence. II The human body consists only of biological substances. -
ANSWERI is correct and II is incorrect
Characteristics of life include: - ANSWERgrowth and metabolism
Examples of synthetic substances are: - ANSWERplastics and silicones
Examples of organic biological substances are: - ANSWERcarbohydrates and
fats
Examples of mineral substances are: - ANSWERparaffins and petroleum
Matter is everything that: - ANSWERoccupies space and has weight
The three forms of matter are solids, liquids and: - ANSWERgases
What property does all matter have? - ANSWERAll matter has weight
,Condensation is the change of matter from: - ANSWERa gas to a liquid
Vapourisation is the change of matter from: - ANSWERliquid to a gas
Melting is the change of matter from: - ANSWERa solid to a liquid
Sublimation is the change of matter from: - ANSWERa solid to a gas
Condensation is: - ANSWERthe change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new
substance is called a/an: - ANSWERphysical change
The immediate change of a solid into a vapour is called: -
ANSWERsublimation
An example of a single-celled cellular organism is: - ANSWERa bacterium
I. A micro-organism is the smallest part of the human body. II All micro-
organisms need nutrients for their existence. - ANSWERI is incorrect and II is
correct
Examples of bacteria are: - ANSWERbacilli and cocci
,I. Every living organism needs some non-biological substances for it's
existence. II. All non-biological substances are found as minerals in the earth.
- ANSWERI is correct and II is incorrect
Science deals mainly with: - ANSWERphysics and chemistry
The study of the structure of the body is called: - ANSWERanatomy
The study of the functions of living organisms is: - ANSWERphysiology
I Anatomy is a very important science in the field of biology. II Anatomy is the
science which deals with the functions of the human body. - ANSWERI is
correct and II is incorrect
I Physiology is a very important science in the field of biology. II Physiology is
the science which deals with the functions of the body. - ANSWERI and II are
both correct
Which one of the following belongs to the science of chemistry? -
ANSWERThe alteration of the structure of molecules
I Chemical reactions only take place outside and not inside a living organism.
II The structure of molecules change during chemical reactions. - ANSWERI is
incorrect and II is correct
The field of physics includes: - ANSWERheat and electricity
, Which one of the following belongs to the field of physics? - ANSWERSound,
electricity and heat
The field of physics includes: - ANSWERthe science of electricity
An anion is: - ANSWERA negatively charged atom
An anion is: - ANSWERa negatively charged chloride atom (CI-)
A cation is: - ANSWERA positively charged sodium atom (Na+)
An electrolyte is: - ANSWERA substance which, dissolved in water, splits into
ions
Examples of electrolytes are: - ANSWERacids and salts
An example of an electrolyte is: - ANSWERsalt-solution
An acid is an electrolyte because: - ANSWERit can conduct an electric current
An example of an inorganic acid is: - ANSWERsulphuric acid
An alkali must contain: - ANSWERmetal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - ANSWERsoap
DETAILED ANSWERS/ALREADY GRADED, Exams of Advanced Education
I Biological and non-biological substances both need oxygen for their
existence. II The human body consists only of biological substances. -
ANSWERI is correct and II is incorrect
Characteristics of life include: - ANSWERgrowth and metabolism
Examples of synthetic substances are: - ANSWERplastics and silicones
Examples of organic biological substances are: - ANSWERcarbohydrates and
fats
Examples of mineral substances are: - ANSWERparaffins and petroleum
Matter is everything that: - ANSWERoccupies space and has weight
The three forms of matter are solids, liquids and: - ANSWERgases
What property does all matter have? - ANSWERAll matter has weight
,Condensation is the change of matter from: - ANSWERa gas to a liquid
Vapourisation is the change of matter from: - ANSWERliquid to a gas
Melting is the change of matter from: - ANSWERa solid to a liquid
Sublimation is the change of matter from: - ANSWERa solid to a gas
Condensation is: - ANSWERthe change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new
substance is called a/an: - ANSWERphysical change
The immediate change of a solid into a vapour is called: -
ANSWERsublimation
An example of a single-celled cellular organism is: - ANSWERa bacterium
I. A micro-organism is the smallest part of the human body. II All micro-
organisms need nutrients for their existence. - ANSWERI is incorrect and II is
correct
Examples of bacteria are: - ANSWERbacilli and cocci
,I. Every living organism needs some non-biological substances for it's
existence. II. All non-biological substances are found as minerals in the earth.
- ANSWERI is correct and II is incorrect
Science deals mainly with: - ANSWERphysics and chemistry
The study of the structure of the body is called: - ANSWERanatomy
The study of the functions of living organisms is: - ANSWERphysiology
I Anatomy is a very important science in the field of biology. II Anatomy is the
science which deals with the functions of the human body. - ANSWERI is
correct and II is incorrect
I Physiology is a very important science in the field of biology. II Physiology is
the science which deals with the functions of the body. - ANSWERI and II are
both correct
Which one of the following belongs to the science of chemistry? -
ANSWERThe alteration of the structure of molecules
I Chemical reactions only take place outside and not inside a living organism.
II The structure of molecules change during chemical reactions. - ANSWERI is
incorrect and II is correct
The field of physics includes: - ANSWERheat and electricity
, Which one of the following belongs to the field of physics? - ANSWERSound,
electricity and heat
The field of physics includes: - ANSWERthe science of electricity
An anion is: - ANSWERA negatively charged atom
An anion is: - ANSWERa negatively charged chloride atom (CI-)
A cation is: - ANSWERA positively charged sodium atom (Na+)
An electrolyte is: - ANSWERA substance which, dissolved in water, splits into
ions
Examples of electrolytes are: - ANSWERacids and salts
An example of an electrolyte is: - ANSWERsalt-solution
An acid is an electrolyte because: - ANSWERit can conduct an electric current
An example of an inorganic acid is: - ANSWERsulphuric acid
An alkali must contain: - ANSWERmetal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - ANSWERsoap
