50 multiple-choice questions: Biological Skills and Investigation

Biological Skills and Investigation – 50 MCQs FORM 2 TOPIC 1

Biology is best defined as:
a) Study of matter and energy
b) Study of living things and their environment
c) Study of stars and planets
d) Study of chemicals
Which of the following is not a success criterion in biological investigation?
a) Plan investigations
b) Carry out investigations
c) Analyze data
d) Writing poetry
Which method is suitable for summarizing information about processes?
a) Flow diagrams
b) Tables
c) Short notes
d) Opinions
If a passage describes an object, which summarization method is best?
a) Table
b) Labelled diagram
c) Flow chart
d) Graph
Formulating questions from a passage and answering them later helps in:
a) Time wasting
b) Better comprehension
c) Drawing diagrams
d) Writing stories

A statement taken for granted to be true is called:
a) Fact
b) Assumption
c) Opinion
d) Assertion
“Malaria is caused by Plasmodium” is an example of a:
a) Fact
b) Opinion
c) Assumption
d) Prediction
“When it is hot, it will rain” is an example of:
a) Opinion
b) Fact
c) Assumption
d) Assertion
Which type of statement can be either fact or opinion?
a) Assumption
b) Assertion
c) Prediction
d) Fact
“If you eat too much, you will be constipated” is an example of:
a) Prediction
b) Fact
c) Opinion
d) Assertion

Which of the following is NOT a quality of a good biological drawing?
a) Large enough
b) Detailed
c) Includes magnification
d) Colored and decorated
The formula for magnification is:
a) Magnification = Actual size / Drawing size
b) Magnification = Drawing size / Actual size
c) Magnification = Drawing size × Actual size
d) Magnification = Objective lens ÷ Eyepiece
If a leaf of 15 cm is drawn as 5 cm, what is the magnification?
a) ×1/3
b) ×3
c) ×10
d) ×5
Which drawing method is best for showing plant processes?
a) Flow diagram
b) Table
c) Bar graph
d) Paragraph notes
Why should magnification always be indicated on a biological drawing?
a) To make it beautiful
b) To show enlargement ratio
c) To decorate the drawing
d) To replace measurements

A connection between variables is called a:
a) Relationship
b) Prediction
c) Opinion
d) Conclusion
In a plant growth experiment, the input variable is:
a) Time
b) Height of the plant
c) Amount of water
d) Results table
The measured factor in an experiment is called the:
a) Independent variable
b) Dependent variable
c) Controlled variable
d) Constant
Keeping all factors the same except one is known as:
a) Prediction
b) Fair testing
c) Observation
d) Data analysis
Which variable is deliberately changed in an investigation?
a) Input (independent) variable
b) Output variable
c) Control variable
d) Random variable

Which of the following is not part of a biological report?
a) Investigation objectives
b) Outcome variables
c) Constant variables
d) Personal opinion only
Results in a biological report are best presented in:
a) Long stories
b) A results table
c) Poems
d) Assumptions
A conclusion in a report should be based on:
a) Opinion
b) Data analysis
c) Guesswork
d) Assumptions
Which section of a report lists variables kept unchanged?
a) Objectives
b) Outcome variables
c) Constant variables
d) Conclusion
The first step in writing a biological report is:
a) Drawing diagrams
b) Setting investigation objectives
c) Writing the conclusion
d) Recording results

Which of the following is not part of an investigation?
a) Making observations
b) Recording data
c) Drawing conclusions
d) Singing
Why is data analysis important in an investigation?
a) It helps in guessing answers
b) It identifies relationships and patterns
c) It replaces experiments
d) It avoids writing reports
Which step comes after analyzing data?
a) Making observations
b) Drawing conclusions
c) Planning the investigation
d) Formulating questions
The main purpose of repeating an investigation is:
a) To waste materials
b) To confirm results and reduce errors
c) To make it longer
d) To confuse learners
Which of the following is an example of an everyday investigation?
a) Studying rainfall on Mars
b) Checking why plants in the garden are yellowing
c) Inventing new metals
d) Studying the speed of rockets

Why should students not work without teacher supervision?
a) To avoid accidents
b) To save time
c) To finish quickly
d) To be entertained
Why should gas burners be tightly closed after use?
a) To save gas
b) To prevent accidents
c) To keep the lab warm
d) To save money
Touching chemicals without permission is dangerous because:
a) They may smell bad
b) They may be poisonous or corrosive
c) They are too expensive
d) They may feel hot
Why should safety gear be worn in the lab?
a) To follow fashion
b) To impress friends
c) To protect against spills and injuries
d) To avoid supervision
Which of the following is prohibited in lab safety rules?
a) Tasting chemicals
b) Washing hands
c) Cleaning the stage
d) Wearing goggles

The microscope is mainly used to:
a) Measure temperature
b) Heat substances
c) Magnify very small organisms
d) Weigh objects
Which microscope is common in schools?
a) Light microscope
b) Electron microscope
c) Digital microscope only
d) Solar microscope
The fine adjustment knob is used for:
a) Rough focusing
b) Precise focusing
c) Carrying the microscope
d) Holding the slide
Which part secures the slide in place?
a) Clip
b) Arm
c) Base
d) Diaphragm
Which part reflects light onto the specimen?
a) Mirror
b) Condenser
c) Stage
d) Eyepiece
Why should the microscope be carried with both hands?
a) To prevent accidents and damage
b) To make it heavier
c) To polish it
d) To look professional
Which is not a care rule for a microscope?
a) Avoid fingerprints on lenses
b) Force adjustments if stuck
c) Keep the stage clean and dry
d) Never unscrew lens components
The total magnification of eyepiece ×10 and objective ×40 is:
a) ×400
b) ×40
c) ×10
d) ×4
Glass slides are used for:
a) Heating substances
b) Holding specimens for observation
c) Measuring liquids
d) Grinding powders
Why should the stage be kept clean and dry?
a) For beauty
b) To prevent damage and ensure accuracy
c) To impress teachers
d) To reduce light

Which instrument measures liquid volume?
a) Beaker
b) Measuring cylinder
c) Thermometer
d) Ruler
The volume of irregular objects is measured using:
a) Triple beam balance
b) Displacement in a measuring cylinder
c) Meter rule
d) Clinical thermometer
Temperature of substances is measured in:
a) Grams
b) Degrees Celsius
c) Litres
d) Newtons
A clinical thermometer is unique because it has:
a) A constriction
b) A mirror
c) A wide base
d) A double bulb
Mass of an object is best measured using:
a) Meter ruler
b) Thermometer
c) Triple beam balance
d) Beaker