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CIDESCO BEAUTY THERAPY DIPLOMA
THEORY EXAM – STUDY GUIDE | LATEST
UPDATE 2026/2027 | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW
TABLE OF CONTENTS
1. Natural Science: Matter, Chemistry, and Physics
2. Natural Science: Electricity, Heat, and Light
3. Hygiene Science and Infection Control
4. Anatomy and Physiology: Body Systems
5. Anatomy and Physiology: Skin Structure and Function
6. Skin Dermatology and Disorders
7. Cosmetic Science: Product Formulations and Ingredients
8. Cosmetic Science: pH, Emulsions, and Product Functions
9. Aesthetic Treatments: Facial and Body Therapies
10. Aesthetic Treatments: Electrotherapy and Equipment
11. Aesthetic Treatments: Hair Removal and Advanced Procedures
12. Business Studies: Consultation, Ethics, and Professional Practice
13. Business Studies: Salon Management and Client Care
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Question 1: What are the three forms of matter?
A) Solids, liquids, and gases
B) Atoms, molecules, and compounds
C) Elements, mixtures, and solutions
D) Acids, bases, and salts
Correct Answer: A) Solids, liquids, and gases
Matter exists in three fundamental states: solid, liquid, and gas. These states differ in
the arrangement and energy of their particles. Beauty therapists must understand
these states when working with products of varying consistencies and when applying
heat or cold treatments.
Question 2: What property does all matter have?
A) Color
B) Weight
C) Odor
D) Taste
Correct Answer: B) Weight
All matter has weight and occupies space. These are the two defining properties of
matter. The weight of matter is determined by the gravitational force acting on its
mass.
Question 3: Condensation is the change of matter from:
A) A gas to a liquid
B) A liquid to a gas
C) A solid to a liquid
D) A solid to a gas
Correct Answer: A) A gas to a liquid
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Condensation occurs when a gas cools and transforms into a liquid. This process
releases heat energy. In beauty therapy, condensation is observed when steam
cools on the skin or when cold surfaces cause moisture to form.
Question 4: Vaporization is the change of matter from:
A) A liquid to a gas
B) A gas to a liquid
C) A solid to a liquid
D) A liquid to a solid
Correct Answer: A) A liquid to a gas
Vaporization occurs when a liquid absorbs enough energy to become a gas. This
process requires heat energy. It is the opposite of condensation and is relevant in
steam treatments and product evaporation.
Question 5: Sublimation is the change of matter from:
A) A solid to a gas
B) A gas to a solid
C) A liquid to a solid
D) A solid to a liquid
Correct Answer: A) A solid to a gas
Sublimation is the direct transition from solid to gas without passing through the
liquid phase. Dry ice is a common example. This principle is applied in certain
cryotherapy and exfoliation treatments.
Question 6: The alteration of the properties of matter without the formation of any
new substance is called a:
A) Physical change
B) Chemical change
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C) Nuclear change
D) Biological change
Correct Answer: A) Physical change
A physical change alters the form or appearance of a substance without changing its
chemical composition. Examples include melting, freezing, and dissolving. Chemical
changes, by contrast, create new substances with different properties.
Question 7: An example of an organic biological substance is:
A) Carbohydrates and fats
B) Paraffins and petroleum
C) Plastics and silicones
D) Minerals and metals
Correct Answer: A) Carbohydrates and fats
Organic biological substances are carbon-based compounds produced by living
organisms. Carbohydrates, fats, proteins, and vitamins are essential organic
nutrients for the human body. They are fundamental to cellular function and skin
health.
Question 8: Examples of mineral substances are:
A) Paraffins and petroleum
B) Carbohydrates and proteins
C) Vitamins and enzymes
D) Hormones and antibodies
Correct Answer: A) Paraffins and petroleum
Mineral substances are inorganic materials derived from the earth. Paraffin wax and
petroleum jelly are commonly used in beauty therapy for their emollient and
occlusive properties. They are chemically inert and well-tolerated by most skin types.
CIDESCO BEAUTY THERAPY DIPLOMA
THEORY EXAM – STUDY GUIDE | LATEST
UPDATE 2026/2027 | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW
TABLE OF CONTENTS
1. Natural Science: Matter, Chemistry, and Physics
2. Natural Science: Electricity, Heat, and Light
3. Hygiene Science and Infection Control
4. Anatomy and Physiology: Body Systems
5. Anatomy and Physiology: Skin Structure and Function
6. Skin Dermatology and Disorders
7. Cosmetic Science: Product Formulations and Ingredients
8. Cosmetic Science: pH, Emulsions, and Product Functions
9. Aesthetic Treatments: Facial and Body Therapies
10. Aesthetic Treatments: Electrotherapy and Equipment
11. Aesthetic Treatments: Hair Removal and Advanced Procedures
12. Business Studies: Consultation, Ethics, and Professional Practice
13. Business Studies: Salon Management and Client Care
, Page |2
Question 1: What are the three forms of matter?
A) Solids, liquids, and gases
B) Atoms, molecules, and compounds
C) Elements, mixtures, and solutions
D) Acids, bases, and salts
Correct Answer: A) Solids, liquids, and gases
Matter exists in three fundamental states: solid, liquid, and gas. These states differ in
the arrangement and energy of their particles. Beauty therapists must understand
these states when working with products of varying consistencies and when applying
heat or cold treatments.
Question 2: What property does all matter have?
A) Color
B) Weight
C) Odor
D) Taste
Correct Answer: B) Weight
All matter has weight and occupies space. These are the two defining properties of
matter. The weight of matter is determined by the gravitational force acting on its
mass.
Question 3: Condensation is the change of matter from:
A) A gas to a liquid
B) A liquid to a gas
C) A solid to a liquid
D) A solid to a gas
Correct Answer: A) A gas to a liquid
, Page |3
Condensation occurs when a gas cools and transforms into a liquid. This process
releases heat energy. In beauty therapy, condensation is observed when steam
cools on the skin or when cold surfaces cause moisture to form.
Question 4: Vaporization is the change of matter from:
A) A liquid to a gas
B) A gas to a liquid
C) A solid to a liquid
D) A liquid to a solid
Correct Answer: A) A liquid to a gas
Vaporization occurs when a liquid absorbs enough energy to become a gas. This
process requires heat energy. It is the opposite of condensation and is relevant in
steam treatments and product evaporation.
Question 5: Sublimation is the change of matter from:
A) A solid to a gas
B) A gas to a solid
C) A liquid to a solid
D) A solid to a liquid
Correct Answer: A) A solid to a gas
Sublimation is the direct transition from solid to gas without passing through the
liquid phase. Dry ice is a common example. This principle is applied in certain
cryotherapy and exfoliation treatments.
Question 6: The alteration of the properties of matter without the formation of any
new substance is called a:
A) Physical change
B) Chemical change
, Page |4
C) Nuclear change
D) Biological change
Correct Answer: A) Physical change
A physical change alters the form or appearance of a substance without changing its
chemical composition. Examples include melting, freezing, and dissolving. Chemical
changes, by contrast, create new substances with different properties.
Question 7: An example of an organic biological substance is:
A) Carbohydrates and fats
B) Paraffins and petroleum
C) Plastics and silicones
D) Minerals and metals
Correct Answer: A) Carbohydrates and fats
Organic biological substances are carbon-based compounds produced by living
organisms. Carbohydrates, fats, proteins, and vitamins are essential organic
nutrients for the human body. They are fundamental to cellular function and skin
health.
Question 8: Examples of mineral substances are:
A) Paraffins and petroleum
B) Carbohydrates and proteins
C) Vitamins and enzymes
D) Hormones and antibodies
Correct Answer: A) Paraffins and petroleum
Mineral substances are inorganic materials derived from the earth. Paraffin wax and
petroleum jelly are commonly used in beauty therapy for their emollient and
occlusive properties. They are chemically inert and well-tolerated by most skin types.
